[media] cx88: fix sparse warning

drivers/media/pci/cx88/cx88-blackbird.c:476:25: warning: cast to restricted __le32
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/pci/cx88/cx88-blackbird.c

@@ -428,7 +428,7 @@ static int blackbird_load_firmware(struct cx8802_dev *dev)
 	int i, retval = 0;
 	u32 value = 0;
 	u32 checksum = 0;
-	u32 *dataptr;
+	__le32 *dataptr;
 
 	retval  = register_write(dev->core, IVTV_REG_VPU, 0xFFFFFFED);
 	retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS, IVTV_CMD_HW_BLOCKS_RST);
@@ -467,7 +467,7 @@ static int blackbird_load_firmware(struct cx8802_dev *dev)
 
 	/* transfer to the chip */
 	dprintk(1,"Loading firmware ...\n");
-	dataptr = (u32*)firmware->data;
+	dataptr = (__le32 *)firmware->data;
 	for (i = 0; i < (firmware->size >> 2); i++) {
 		value = le32_to_cpu(*dataptr);
 		checksum += ~value;