ARM: dts: OMAP5: switch to compatible pinctrl
ARM: dts: OMAP5: switch to compatible pinctrl

Now that ti,omap5-padconf is available, switch over to that compatible
property. Retain pinctrl-single for legacy support.

While at it, mark pinctrl as interrupt controller so that it can be
used with interrupts-extended property for wakeup events.

Signed-off-by: Nishanth Menon <50c3c575ce2bb12c45e20736ce59e86fe81915b4@ti.com>

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