[PATCH] doc: fix missing release note for timestamp offload on iavf

[Thomas Monjalon]

28/06/2023 07:37, Zhichao Zeng:
> Add missing release note for Rx timestamp offload on vector path.
> 
> Fixes: 61b6874b9224 ("net/iavf: support Rx timestamp offload on AVX512")
> Signed-off-by: Zhichao Zeng <zhichaox.zeng at intel.com>

Added other fix lines for AVX2 and SSE, and applied.