wireless: at76c50x: follow rename pack_hex_byte to hex_byte_pack

There is no functional change.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/net/wireless/at76c50x-usb.c

@@ -517,7 +517,7 @@ static char *hex2str(void *buf, size_t len)
 		goto exit;
 
 	while (len--) {
-		obuf = pack_hex_byte(obuf, *ibuf++);
+		obuf = hex_byte_pack(obuf, *ibuf++);
 		*obuf++ = '-';
 	}
 	obuf--;