ANDROID: arm64: allow hooks into ipi
Allow drivers to register hooks when IPIs are sent and handled. The
statistics of these IPIs are helpful in predicting CPU idle states.
Bug: 172588415
Signed-off-by:
Lina Iyer <ilina@codeaurora.org>
Change-Id: I33f6e5598abb0b53392030407900037d5cd516e0
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