drm/kmb: Keem Bay driver register definition

drm/kmb: Keem Bay driver register definition

Register definitions for Keem Bay display driver

v2: removed license text (Sam)
v3: Squashed all 59 commits to one
v4: review changes from Sam Ravnborg
	renamed dev_p to kmb
v5: corrected spellings
v6: corrected checkpatch warnings
v7: removed redundant definitions
v8: removed redundant definitions, clean up (Sam R)

Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1604538931-26726-5-git-send-email-anitha.chrisanthus@intel.com