crypto: aes - Replace aes-generic with wrapper around lib

crypto: aes - Replace aes-generic with wrapper around lib

Now that the AES library's performance has been improved, replace
aes_generic.c with a new file aes.c which wraps the AES library.

In preparation for making the AES library actually utilize the kernel's
existing architecture-optimized AES code including AES instructions, set
the driver name to "aes-lib" instead of "aes-generic".  This mirrors
what's been done for the hash algorithms.  Update testmgr.c accordingly.

Since this removes the crypto_aes_set_key() helper function, add
temporary replacements for it to arch/arm/crypto/aes-cipher-glue.c and
arch/arm64/crypto/aes-cipher-glue.c.  This is temporary, as that code
will be migrated into lib/crypto/ in later commits.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20260112192035.10427-10-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>