GIC: Show interrupts that triggered wakeup

This change is to satisfy the logging requirement of
wakeup interrupts. Add code to log the trigger status
of wakeup interrupts. This helps in debugging
the cause of wakeup when the system is suspended

Change-Id: I0f724296f9133433cdbc3271a9b91c6fa992a2ff
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
(cherry picked from commit c0dde6391c0d4971f5669e970a95b2e6885e36eb)