linux-imx

amdgpu/dc: set a bunch of functions to static.

All of these are unused outside the file they are in.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>