drm/amd/display: Fold DCC validation tests

[WHAT]
Reduce the seven KUnit tests for amdgpu_dm_plane_validate_dcc() to
three.

[HOW]
Split them into a table-driven test for the checks that run before the
DC capability query and a table-driven test for the rejections that come
out of it, leaving the success and scan-mapping test unchanged.

Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

0 files changed, 0 insertions, 0 deletions