Allow wificond to mark interfaces up and down

avc: denied { create } for scontext=u:r:wificond:s0
tcontext=u:r:wificond:s0 tclass=udp_socket permissive=0

avc: denied { net_raw } for capability=13 scontext=u:r:wificond:s0
tcontext=u:r:wificond:s0 tclass=capability permissive=0

avc: denied { read } for name="psched" dev="proc" ino=4026535377
scontext=u:r:wificond:s0 tcontext=u:object_r:proc_net:s0 tclass=file
permissive=0

Test: fixes above avc denials
Bug: 29579539

Change-Id: Ie1dff80103e81cfba8064a22b5dd3e1e8f29471b