Move to SOC_SOC_IMX3X.
Leave ARCH_MX31/35 definitions there, in case some place prevent multi-soc
single image.
Signed-off-by: NRichard Zhao <richard.zhao@freescale.com>
Acked-by: NMarc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>