crypto: arm/chacha20 - implement NEON version based on SSE3 code
This is a straight port to ARM/NEON of the x86 SSE3 implementation of the ChaCha20 stream cipher. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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