drm/amdgpu: Clean up errors in mes_v11_0.c

Fix the following errors reported by checkpatch:

ERROR: else should follow close brace '}'
Signed-off-by: Ran Sun <sunran001@208suo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/mes_v11_0.c

@@ -788,8 +788,7 @@ static int mes_v11_0_mqd_init(struct amdgpu_ring *ring)
 				    DOORBELL_SOURCE, 0);
 		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
 				    DOORBELL_HIT, 0);
-	}
-	else
+	} else
 		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
 				    DOORBELL_EN, 0);
 	mqd->cp_hqd_pq_doorbell_control = tmp;