ARM: dts: msm: Use PDC IRQ for SPMI to allow PMIC peripheral wakeup on Kona

Interrupts that are expected to wakeup the SoC from suspend or deep sleep mode
need to be requested from the PDC interrupt controller. Change SPMI
configuration to request PDC interrupt 1 instead of GIC interrupt 481.

Change-Id: I8ce046afd7ec836a784c94cac0e93e08f7b95947
Signed-off-by: Lina Iyer <ilina@codeaurora.org>