i.MX31: fix mxc_iomux_set_pad()

mxc_iomux_set_pad() is buggy on i.MX31 - it calculates the register and
the offset therein wrongly. Fix it.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 file changed