crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes

Update the ARMv8 Crypto Extensions and the plain NEON AES implementations
in CBC and CTR modes to return the next IV back to the skcipher API client.
This is necessary for chaining to work correctly.

Note that for CTR, this is only done if the request is a round multiple of
the block size, since otherwise, chaining is impossible anyway.

Cc: <stable@vger.kernel.org> # v3.16+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

path: root/Documentation/ABI/testing/configfs-usb-gadget-uac1

What:		/config/usb-gadget/gadget/functions/uac1.name
Date:		Sep 2014
KernelVersion:	3.18
Description:
		The attributes:

		audio_buf_size - audio buffer size
		fn_cap - capture pcm device file name
		fn_cntl - control device file name
		fn_play - playback pcm device file name
		req_buf_size - ISO OUT endpoint request buffer size
		req_count - ISO OUT endpoint request count