[MTD] Tidy bitrev usage in rtc_from4.c

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c
index 4a83a7d..02deec3 100644
--- a/drivers/mtd/nand/rtc_from4.c
+++ b/drivers/mtd/nand/rtc_from4.c
@@ -357,7 +357,7 @@
 	/* Read the syndrom pattern from the FPGA and correct the bitorder */
 	rs_ecc = (volatile unsigned short *)(rtc_from4_fio_base + RTC_FROM4_RS_ECC);
 	for (i = 0; i < 8; i++) {
-		ecc[i] = byte_rev_table[(*rs_ecc) & 0xFF];
+		ecc[i] = bitrev8(*rs_ecc);
 		rs_ecc++;
 	}