Even though ARM's versions of kernel_neon_begin()/_end() are not being
changed, update the newly migrated ARM blake2b to the scoped ksimd API
so that all ARM and arm64 in lib/crypto remains consistent in this
manner.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>