Prepend `0x` to the NFP HWINFO header value that is printed to improve
the readability of the printed statement.
Fixes: c7e9729da6 ("net/nfp: support CPP")
Cc: stable@dpdk.org
Signed-off-by: James Hershaw <james.hershaw@corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>