ARM: gic-v3: Log the IRQs in RTB before handling an IRQ

Gic-v3 did not log IRQs in RTB like gic-v2. Thus add the LOGK_IRQ
logbefore calling the IRQ handler like gic-v2.

eberman@codeaurora.org: resolved trivial merge conflicts.

Change-Id: I46a5951e733a05b9a7d5d6323568fa800dfb5d62
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>