ethdev: remove error return on RSS hash check

ethdev: remove error return on RSS hash check

Many sample applications fail because of
dev_info.flow_type_rss_offloads check in rte_eth_dev_configure()

The sample applications need to be fixed/updated before returning error
on rte_eth_dev_configure() and rte_eth_dev_rss_hash_update().

This patch keeps the error logs but removes returning errors.

Fixes: 8863a1fbfc66 ("ethdev: add supported hash function check")

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>