ARM: ux500: move snowball pin configs to device tree

Move the few remaining snowball pin configurations to the device
tree, reference these as hogs to the pin controller until there
are real devices that can make use of them.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --cc arch/arm/boot/dts/ste-snowball.dts
Simple merge

diff --cc arch/arm/mach-ux500/board-mop500-pins.c
Simple merge