brcm80211: smac: fix endianess issue for OTP memory access

This fixes issue when using OTP memory. It was introduced by
following commit:

commit 028f78d4
Author: Arend van Spriel <arend@broadcom.com>
Date:   Fri Oct 21 16:16:35 2011 +0200

    brcm80211: smac: change buffer endianess convert function interface
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmsmac/srom.c

@@ -835,6 +835,8 @@ static int otp_read_pci(struct si_pub *sih, u16 *buf, uint nwords)
 		 */
 		return -ENODATA;
 
+	/* fixup the endianness so crc8 will pass */
+	cpu_to_le16_buf(buf, sz);
 	if (crc8(brcms_srom_crc8_table, (u8 *) buf, sz * 2,
 		 CRC8_INIT_VALUE) != CRC8_GOOD_VALUE(brcms_srom_crc8_table))
 		err = -EIO;