drm/amdgpu: enable GDDR6 save-restore support for dimgrey_cavefish

add mp0 11_0_12 for dimgrey_cavefish to the mem training
supported list, otherwise the modeprobe would fail
on dimgrey_cavefish with latest vbios.
Signed-off-by: NHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c

@@ -548,6 +548,7 @@ int amdgpu_mem_train_support(struct amdgpu_device *adev)
 		case HW_REV(11, 0, 5):
 		case HW_REV(11, 0, 7):
 		case HW_REV(11, 0, 11):
+		case HW_REV(11, 0, 12):
 			ret = 1;
 			break;
 		default: