drm/amd/dkms: Disable DC_DCN2_0

DC_DCN2_0 is causing dkms build problem. Disable it for now.

Change-Id: If59a2fda6bceea5d89034ce81a1722e2607418df
Signed-off-by: Amber Lin <[email protected]>

Author: amd-yahuil

drivers/gpu/drm/amd/dkms/Makefile

@@ -186,7 +186,6 @@ export CONFIG_DRM_AMDGPU_USERPTR=y
 export CONFIG_DRM_AMD_DC=y
 export CONFIG_DRM_AMD_DC_DCN1_0=y
 export CONFIG_DRM_AMD_DC_DCN1_01=y
-export CONFIG_DRM_AMD_DC_DCN2_0=y
 
 subdir-ccflags-y += -DCONFIG_HSA_AMD
 subdir-ccflags-y += -DBUILD_AS_DKMS
@@ -196,6 +195,5 @@ subdir-ccflags-y += -DCONFIG_DRM_AMDGPU_USERPTR
 subdir-ccflags-y += -DCONFIG_DRM_AMD_DC
 subdir-ccflags-y += -DCONFIG_DRM_AMD_DC_DCN1_0
 subdir-ccflags-y += -DCONFIG_DRM_AMD_DC_DCN1_01
-subdir-ccflags-y += -DCONFIG_DRM_AMD_DC_DCN2_0
 
 obj-m += scheduler/ amd/amdgpu/ ttm/ amd/amdkcl/