drm/amd/pm/powerplay/hwmgr/process_pptables_v1_0: Convert to proper kernel-doc format

drm/amd/pm/powerplay/hwmgr/process_pptables_v1_0: Convert to proper kernel-doc format

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:41: warning: Function parameter or member 'hwmgr' not described in 'set_hw_cap'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:41: warning: Function parameter or member 'setIt' not described in 'set_hw_cap'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:41: warning: Function parameter or member 'cap' not described in 'set_hw_cap'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:56: warning: Function parameter or member 'hwmgr' not described in 'set_platform_caps'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:56: warning: Function parameter or member 'powerplay_caps' not described in 'set_platform_caps'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:135: warning: Function parameter or member 'hwmgr' not described in 'get_powerplay_table'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:202: warning: Function parameter or member 'hwmgr' not described in 'get_platform_power_management_table'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:202: warning: Function parameter or member 'atom_ppm_table' not described in 'get_platform_power_management_table'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:246: warning: Function parameter or member 'hwmgr' not described in 'init_dpm_2_parameters'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:246: warning: Function parameter or member 'powerplay_table' not described in 'init_dpm_2_parameters'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:791: warning: Function parameter or member 'hwmgr' not described in 'init_clock_voltage_dependency'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:791: warning: Function parameter or member 'powerplay_table' not described in 'init_clock_voltage_dependency'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:911: warning: Function parameter or member 'hwmgr' not described in 'init_thermal_controller'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:911: warning: Function parameter or member 'powerplay_table' not described in 'init_thermal_controller'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1121: warning: Function parameter or member 'hwmgr' not described in 'check_powerplay_tables'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1121: warning: Function parameter or member 'powerplay_table' not described in 'check_powerplay_tables'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1263: warning: Function parameter or member 'hwmgr' not described in 'make_classification_flags'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1263: warning: Function parameter or member 'classification' not described in 'make_classification_flags'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1263: warning: Function parameter or member 'classification2' not described in 'make_classification_flags'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1370: warning: Function parameter or member 'hwmgr' not described in 'get_powerplay_table_entry_v1_0'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1370: warning: Function parameter or member 'entry_index' not described in 'get_powerplay_table_entry_v1_0'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1370: warning: Function parameter or member 'power_state' not described in 'get_powerplay_table_entry_v1_0'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/process_pptables_v1_0.c:1370: warning: Function parameter or member 'call_back_func' not described in 'get_powerplay_table_entry_v1_0'

Cc: Evan Quan <evan.quan@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>