Perf: arm64: add support for msm8994v1 irq

msm8994v1 needs a workaround where the pmu irq
is routed to CTI. Perf-events needs to clear the
CTI interrupt.

Change-Id: If0d7113c5935bb125bd960dfdadd6d37528e072f
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>