drm/amdkfd: Cosmetic cleanup

Fix some spacing issues, log output, uses of !=NULL/==NULL, unneeded
extra lines and clean up a declaration from =1 to =true for clarity

Signed-off-by: Kent Russell <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
9 files changed