Fixed multicast filter programming and allmulti programming.
Fixed to skip programming multicast macs if the user requests
allmulti mode.
Also removed a comment in bnxt_hwrm_cfa_l2_set_rx_mask() which is
no longer valid now.
Fixes: d69851df12b2 ("net/bnxt: support multicast filter and set MAC addr") Cc: stable@dpdk.org Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>