ARM: gic: Log the IRQs in RTB before handling an IRQ

LOGK_IRQs are not logged when consecutive IRQs are fired.
Hence Add LOGK_IRQ before calling the IRQ handler.

Change-Id: I0ab5fdeb3b8e9655f1b3672b1b8872dc7d623ec3
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>