When XAQ pool is being re-configured, and if the same memzone
is used for fc_mem when freeing the old mempool the fc_mem
will be incorrectly updated with the free count.
Fixes: ffa4ec0b6063 ("event/octeontx2: allow adapters to resize inflight buffers")
Cc: stable@dpdk.org
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>