drm/amd/display: Add Renoir resource (v2)

Manages the renoir display resources (crtcs, phys, plls, etc.).

v2: rebase (Alex)

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Bhawanpreet Lakha

drivers/gpu/drm/amd/display/dc/dcn21/Makefile

@@ -1,7 +1,7 @@
 #
 # Makefile for DCN21.
 
-DCN21 = dcn21_hubp.o dcn21_hubbub.o
+DCN21 = dcn21_hubp.o dcn21_hubbub.o dcn21_resource.o
 
 CFLAGS_dcn21_resource.o := -mhard-float -msse -mpreferred-stack-boundary=4