ARM: imx: initial SolidRun HummingBoard support

ARM: imx: initial SolidRun HummingBoard support

Add support for the SolidRun HummingBoard.  This commit adds support for
the following interfaces on this board:

- Consumer Ir receiver
- S/PDIF output
- Both USB interfaces
- Gigabit Ethernet using AR8035
- UART port

shawn.guo:
- Add pinctrl_hummingboard_i2c1 and pinctrl_microsom_uart1 to replace
  pinctrl_i2c1_1 and pinctrl_uart1_1
- Use generic name for fixed voltage regulator nodes
- Fix commment format in mach-imx6q.c
- Move ar8035_phy_fixup around to put PHY_ID_AR8031 and PHY_ID_AR8035
  together

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>