arm64: perf: add support for percpu pmu interrupt

Add support for irq registration when pmu interrupt is percpu.

Change-Id: If5e88ce7a6fdf1fb69ec1872d7576e70199e4f49
Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Tuan Phan <tphan@apm.com>
[will: tidied up cross-calling to pass &irq]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 66aa8d6a145b6a66566b4fce219cc56c3d0e01c3
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


[nleeder@codeaurora.org: change irq_is_percpu name for backport]
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>