[PATCH] doc: fix missing release note for I225 support

[Thomas Monjalon]

> > Add missing release note for I225-LMVP support.
> > 
> > Fixes: 431d5e6dc3de ("net/igc: support I225-LMVP device")
> > 
> > Signed-off-by: Qiming Yang <qiming.yang at intel.com>
> 
> Acked-by: Qi Zhang <qi.z.zhang at intel.com>

Applied