drm/amd/display: Add some forward declarations

[WHAT]
Add DML2 pipe and config struct forward declaration as a
preparation for DML2.

Reviewed-by: Chaitanya Dhere <chaitanya.dhere@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Aurabindo Pillai 2023-12-11 10:48:00 -05:00 • committed by Alex Deucher
commit bd1c92a162