drm/amd/pm/swsmu: clean up user profile function

Remove unnecessary comments, enable restore mode using
'|=' operator, fixes the alignment to improve the code
readability.

v2: Move all restoration flag check to bitwise '&' operator

Signed-off-by: Arunpravin <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>