selftests: net: add tcp_inq to gitignore

sha: 702353b538f5 ("selftest: add test for TCP_INQ") forgot to add
tcp_inq to .gitignore.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed