ARM: dts: msm: Fix wdog interrupts on pil subsystems for SM8150

On newer kernels PDC interrupt can only be requested if its
actually routed through PDC HW. Update the pil subsystems
interrupts to use intc interrupts when they are direct
interrupts at GIC and only use PDC if it has routing to PDC HW.

Also, add missing properties vdd_mx-supply and shutdown-ack to
pil lpass node.

Change-Id: Ie60515cd51e55ce0772d5d2c89a603b63ba44545