drm/amdgpu/dce6: Set MASTER_UPDATE_MODE to 0 in resume_mc_access as well

Looks like this was missed when dce_v6_0.c was added.

Fixes: e2cdf640cbb5 ("drm/amdgpu: add display controller implementation for si v10")
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

drivers/gpu/drm/amd/amdgpu/dce_v6_0.c

@@ -460,9 +460,8 @@ static void dce_v6_0_resume_mc_access(struct amdgpu_device *adev,
 	for (i = 0; i < adev->mode_info.num_crtc; i++) {
 		if (save->crtc_enabled[i]) {
 			tmp = RREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i]);
-			if ((tmp & 0x7) != 3) {
+			if ((tmp & 0x7) != 0) {
 				tmp &= ~0x7;
-				tmp |= 0x3;
 				WREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i], tmp);
 			}
 			tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);