linux-imx

selftests: fib_tests: simplify ip commands in a namespace

'ip netns exec testns ip' is more efficiently handled using 'ip -netns';
runs the ip command after switching the namespace and avoids an exec.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>