doc: update bnxt feature list
doc: update bnxt feature list

Updating bnxt.ini file.
These features were added earlier under the following commits.
1) 94d4afd2d167 ("net/bnxt: advertise scatter Rx offload capability")
2) 57d5e5bc86e4 ("net/bnxt: add statistics")
3) 88920136688c ("net/bnxt: support xstats get by id")

Signed-off-by: Ajit Khaparde <01965fbd61169dc18f3fb5e13de7f67d298f8924@broadcom.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk