drm/radeon: use true,false for bool variable in cik.c

Fixes coccicheck warning:

drivers/gpu/drm/radeon/cik.c:8140:2-15: WARNING: Assignment of 0/1 to bool variable
drivers/gpu/drm/radeon/cik.c:8212:2-15: WARNING: Assignment of 0/1 to bool variable
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/cik.c

@@ -8137,7 +8137,7 @@ static void cik_uvd_init(struct radeon_device *rdev)
 		 * there. So it is pointless to try to go through that code
 		 * hence why we disable uvd here.
 		 */
-		rdev->has_uvd = 0;
+		rdev->has_uvd = false;
 		return;
 	}
 	rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_obj = NULL;
@@ -8209,7 +8209,7 @@ static void cik_vce_init(struct radeon_device *rdev)
 		 * there. So it is pointless to try to go through that code
 		 * hence why we disable vce here.
 		 */
-		rdev->has_vce = 0;
+		rdev->has_vce = false;
 		return;
 	}
 	rdev->ring[TN_RING_TYPE_VCE1_INDEX].ring_obj = NULL;