ARM: dts: Add missing gpmc setting for phyCORE-AM335x ...

cycle2cycle-diffcsen needs to be enabled.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: dts: phyCORE-AM335x: Remove unused pin in nandflash pinmuxing ...

Pin 0x74 (gpmc_wpn.gpio0_30) is not used on the phyCORE SOM.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: dts: split phyCORE-AM335x device tree ...

To support different module variants, split the phyCORE dts
in dts and dtsi. Configurable parts which are supported by
barebox are spi nor flash and i2c eeprom.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>