net/bnxt: fix Rx queue count

net/bnxt: fix Rx queue count

bnxt_rx_queue_count_op() incorrectly returns the number of
filled but unprocessed completion queue entries instead of
the number of filled but unprocessed received packet
completions. Fix by properly accounting for the number of
completion ring entries used by the various received packet
completion types.

Fixes: 34c0ba839bae ("net/bnxt: fix Rx queue count")
Cc: stable@dpdk.org
Signed-off-by: Lance Richardson <lance.richardson@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>