drm/i915/guc: Improve debug message on context reset notification

drm/i915/guc: Improve debug message on context reset notification

Just recently we switched over to new GuC oriented log macros but in
the meantime yet another message was added that we missed to update.

While around improve that new message by adding engine name and use
existing helpers to check for context state.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230131214413.1879-1-michal.wajdeczko@intel.com