UPSTREAM: arm64: perf: add support for Cortex-A78

Add support for Cortex-A78 using generic PMUv3 for now.

Signed-off-by: Seiya Wang <seiya.wang@mediatek.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210203055348.4935-2-seiya.wang@mediatek.com


Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit db2bb91f)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 238597093
Change-Id: I8c695a7625216cb8dc08dab4e3dd8734cd12254d