Update doc/guides/nics/bnxt.rst to indicate that the bnxt PMD driver
supports Broadcom NetXtreme-C/NetXtreme-E BCM5730X/BCM5740X family of
network controllers and Broadcom StrataGX BCM5871X family of
communications processors.
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: John McNamara <john.mcnamara@intel.com>