soc: qcom: configure ipcc interrupt as wakeup capable

Configure the IPCC summary IRQ as wakeup capable interrupt.
IPCC interrupt needs to wake up the device from low power
modes when wakeup capable event is generated from remote
subsystem.

Change-Id: Iaffefc6ef68743c7de11062c39e2b1453c58b9a1
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
[eberman@codeaurora.org: Resolve merge conflicts]
Signed-off-by: Elliot Berman <eberman@codeaurora.org>