ARM: dts: i.MX51: Move pins configuration under "iomuxc" label

This unmix module/pin definitions and reduce indentation for pin
groups, so makes template a bit cleaner.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
1 file changed