Fix detection of NEON features. ID_AA64PFR0_EL1_ADV_SIMD_NONE means SIMD
is not available, and any other value means it is.

Implement AES-CCM with NEON.

Split aes_impl declarations out into aes_impl.h.

This will make it less painful to add more operations to struct
aes_impl without having to recompile everything that just uses the
block cipher direc

Split aes_impl declarations out into aes_impl.h.

This will make it less painful to add more operations to struct
aes_impl without having to recompile everything that just uses the
block cipher directly or similar.

show more ...

New test sys/crypto/aes/t_aes.

Runs aes_selftest on all kernel AES implementations supported on the
current hardware, not just the preferred one.

New permutation-based AES implementation using ARM NEON.

Also derived from Mike Hamburg's public-domain vpaes code.