ANDROID: gki_defconfig: enable accelerated AES and SHA-256

Enable AES and SHA-256 accelerated with the ARM Cryptography Extensions
or with AES-NI, as recommended by
kernel-configs/android-4.19/android-recommended-{arm64,x86}.config.
These are ~10x faster than the other software implementations of AES and
SHA-256 on most devices, and often are required to get acceptable
fscrypt and dm-verity performance.

Bug: 142410832
Change-Id: Ia2794f47711132d5caa9021e6e81fb625e02be8d
Signed-off-by: Eric Biggers <ebiggers@google.com>