ARM: dts: msm: fix PDC interrupt map for kona

Interrupt map of PDC pins to GIC interrupts have 0-29 pins in sequence.
That amounts to 30 pins. Fix the bindings to reflect that correctly.

Change-Id: I070014e9005a935bf133605f319dbde495dd8eeb
Signed-off-by: Lina Iyer <ilina@codeaurora.org>