Commit 53606b105c6df3c2f3a154b055ac142d5c380251 ('tests: Wait for scan
to complete on all interfaces in reset()') added option of passing
ifname to get_driver_status(). This could result in FAIL-NO-IFNAME-MATCH
returns that get printed out in "Ignore unexpected status-driver line"
messages if the interface is not found. Check for this case to avoid
that unnecessary print.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>