arm64: cpufeature: Pass capability structure to ->enable callback

arm64: cpufeature: Pass capability structure to ->enable callback

PD#166068: arm64: cpufeature: Pass capability structure to ->enable callback

Fix CPU-hotplug fail to bringup issue once stopped CPU.

From: Will Deacon <will.deacon@arm.com>

commit 0a0d111d40fd1dc588cc590fab6b55d86ddc71d3 upstream.

In order to invoke the CPU capability ->matches callback from the ->enable
callback for applying local-CPU workarounds, we need a handle on the
capability structure.

This patch passes a pointer to the capability structure to the ->enable
callback.

Change-Id: I2c002dfbba4e923d0e44ab085ede46e6f47c9755
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com> [v4.9 backport]
Tested-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>