arm64: capabilities: Add support for checks based on a list of MIDRs

Add helpers for detecting an errata on list of midr ranges
of affected CPUs, with the same work around.

Change-Id: I3f2ef42a19b319ca35fccf715ee14bef85eaf671
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Dave Martin <dave.martin@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Git-commit: be5b299830c63ed76e0357473c4218c85fb388b3
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


[isaacm@codeaurora.org: remove code that is not needed for
 having a way of expressing the list of CPUs that would
 be impacted by erratum 1024718.]
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>