Revert "ARM: dts: msm: Change WDOG interrupt number from SLPI for SDM845"

This reverts commit deb315d2.
There are two interrupts mapped for SSC watchdog bite interrupt.
Interrupt 526 goes through PDC and is therefore the proper watchdog
interrupt that should be registered for.

Change-Id: I91be7d45a633ae5cd2b5e29c865c736bbe0ff930
Signed-off-by: Kyle Yan <kyan@codeaurora.org>