dts: at91: cleaning device tree
gpio: at91: make it probe
Merge branch 'at91/dts' of github.com:raphui/barebox into at91/dts

Conflicts:
	arch/arm/dts/at91sam9m10g45ek.dts
	drivers/gpio/gpio-at91.c
pinctrl: at91: driver works
mach-at91: at91sam9g45: add device tree gpio clocks
dts: at91sam9g45: enable device tree
pinctrl: at91: cleanup