[media] af9015: fix sparse warning

drivers/media/usb/dvb-usb-v2/af9015.c:422:38: warning: cast to restricted __le32

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/drivers/media/usb/dvb-usb-v2/af9015.c b/drivers/media/usb/dvb-usb-v2/af9015.c
index 5ca738a..16c0b7d 100644
--- a/drivers/media/usb/dvb-usb-v2/af9015.c
+++ b/drivers/media/usb/dvb-usb-v2/af9015.c
@@ -419,7 +419,7 @@
 	/* calculate checksum */
 	for (i = 0; i < AF9015_EEPROM_SIZE / sizeof(u32); i++) {
 		state->eeprom_sum *= GOLDEN_RATIO_PRIME_32;
-		state->eeprom_sum += le32_to_cpu(((u32 *)buf)[i]);
+		state->eeprom_sum += le32_to_cpu(((__le32 *)buf)[i]);
 	}
 
 	for (i = 0; i < AF9015_EEPROM_SIZE; i += 16)