[EXT] [PATCH v3 06/19] ipsec: use rte optional stdatomic API

[Akhil Goyal]

> Replace the use of gcc builtin __atomic_xxx intrinsics with
> corresponding rte_atomic_xxx optional stdatomic API
> 
> Signed-off-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
> ---
Acked-by: Akhil Goyal <gakhil at marvell.com>