mmc: fsl_esdhc fix register offset

Commit f022d36e8a4517b2a9d25ff2d75bd2459d0c68b1 introduces
error register offset.

Change the "char reserved3[59]" to "char reserved3[56]".

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>

drivers/mmc/fsl_esdhc.c

@@ -56,7 +56,7 @@ struct fsl_esdhc {
 	uint    adsaddr;	/* ADMA system address register */
 	char    reserved2[100];	/* reserved */
 	uint    vendorspec;	/* Vendor Specific register */
-	char    reserved3[59];	/* reserved */
+	char    reserved3[56];	/* reserved */
 	uint    hostver;	/* Host controller version register */
 	char    reserved4[4];	/* reserved */
 	uint    dmaerraddr;	/* DMA error address register */