ARM: mach-mx5: Fix build for mx53_loco and mx53_smd

Commit 816ad741 (ARM: i.MX53: Add full iomux support for mx53) renamed some of the pad names.

Make the changes accordingly so that mx53_loco and mx53_cmd can build without errors.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>