net/bnxt: free the aggregation ring

net/bnxt: free the aggregation ring

bnxt_free_all_hwrm_rings() was freeing all the Rx Rings including
zero-ing out the memory for the Aggregation rings, but was not issuing
the FW cmd to destroy the AGG ring(s) from HW. This would manifest in
problems when port stop/port start would be issued as there would be a
HW ring leak every time port stop was issued.

Fixes: daef48efe5e5 ("net/bnxt: support set MTU")
Cc: stable@dpdk.org
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>