net/tap: fix RxQ errors stat
net/tap: fix RxQ errors stat

Transmit errors must not be reported in q_errors[] which is for
reception.

Fixes: 02f96a0a82d1 ("net/tap: add TUN/TAP device PMD")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <f28529695cfa9e3e1eb84e7072aa626af4abb18e@redhat.com>
Acked-by: Keith Wiles <f97a07384723981b442bf4ce37d40edbfd008094@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk