[EXT] [PATCH 1/2] app/test-crypto-perf: fix invalid memcmp results

[Anoob Joseph]

> The function memcmp() returns an integer less than, equal to, or greater than
> zero. In current code, if the first memcmp() returns less than zero and the
> second memcmp() returns greater than zero, the sum of results may still be 0
> and indicates verify succussed.
> 
> This commit converts the return value to be zero or greater than zero. That will
> make sure the sum of results be correct.
> 
> Fixes: df52cb3b6e13 ("app/crypto-perf: move verify as single test type")
> 
> Signed-off-by: Suanming Mou <suanmingm at nvidia.com>

Acked-by: Anoob Joseph <anoobj at marvell.com>