drm/amd/display: Use gpuvm_min_page_size_kbytes for DML2 surfaces

drm/amd/display: Use gpuvm_min_page_size_kbytes for DML2 surfaces

[ Upstream commit 31663521ede2edb622ee1b397ae3ac666d6351c5 ]

[Why]
It's currently hard coded to 256 when it should be using the SOC
provided values. This can result in corruption with linear surfaces
where we prefetch more PTE than the buffer can hold.

[How]
Update the min page size correctly for the plane.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Jun Lei <jun.lei@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>