drm/amd/powerplay: sort those operations performed in hw setup

Those common operations(for all ASICs) are placed first and followed
by ASIC specific ones. While the display related are placed at the last.

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