arm64: cpufeature: Mark existing PAuth architected algorithm as QARMA5

In preparation of supporting PAuth QARMA3 architected algorithm mark
existing one as QARMA5, so we can distingwish between two.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220224124952.119612-3-vladimir.murzin@arm.com


Signed-off-by: Will Deacon <will@kernel.org>