Add:
 - Setup dts node for USB
 - pin description and setup for SMC1 (serial interface)

Update and cleanup mgcoge_defconfig:
- enable: TIPC, UBIFS, USB_GADGET driver, SQUASHFS, HIGHRES timers
          POSIX_MQUEUE, EMBEDDED
- disable: EXT3, PPC_PMAC
Signed-off-by: NHolger Brunck <holger.brunck@keymile.com>
Acked-by: NHeiko Schocher <hs@denx.de>
cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

The mgcoge board from keymile is now base for some other
similar boards. Therefore the board specific name mgcoge
was renamed to a generic name km82xx. Additionally some
enhancements were made:
	- rework partition table in dts file
	- add cpm2_pio_c gpio controller in dts file
	- update defconfig
	- add pin description for SCC1
	- add pin description and configuration for USB
Signed-off-by: NHolger Brunck <holger.brunck@keymile.com>
Acked-by: NHeiko Schocher <hs@denx.de>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Heiko Schocher <hs@denx.de>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

- add I2C support
- add FCC1 and FCC2 support
- fix bogus gpio numbering in plattform code
Signed-off-by: NHeiko Schocher <hs@denx.de>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NHeiko Schocher <hs@denx.de>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>