ARM: dts: msm: Add bam irq to the mpm bypass list for msm8939

BAM irq is blocking APSS XO shutdown. This irq can be
bypassed as it is not responsible for wake up. Add BAM
irq to the mpm bypass list.

Change-Id: I88285ca70c111705b3e933615b6878a173066001
Signed-off-by: Anil Kumar Mamidala <amami@codeaurora.org>
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Bharat Pawar <bpawar@codeaurora.org>