drm/amdgpu/dce11: Re-show the cursor after a modeset (v2)

Setting a mode seems to clear the cursor registers, so we need to
re-program them to make sure the cursor is visible.

Port of radeon commit:
6d3759fac636028849f3bbec80c4b77e9bfdb1d2

v2: change radeon reference in error output

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 file changed