drivers: GIC: Enable logging of intertupts that triggered wakeup

This change enables logging of irq number and name which triggered
wake up of the system from deep sleep. This helps in debugging the
spurious wakeups due to interrupts from various subsystems.

Change-Id: I3a5bc76bf6dc7a37599d19f8a8255043c4138d5b
Signed-off-by: Teng Fei Fan <tengfei@codeaurora.org>
Signed-off-by: Maria Yu <aiquny@codeaurora.org>