Do not set RSS hash flag in the received mbufs when RSS hash
offload is not enabled, which means that RSS hash value is invalid.
Fixes: 5d308972954c ("ethdev: add mbuf RSS update as an offload")
Cc: stable@dpdk.org
Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>