In preparation of removing permissions from domain_deprecated.

Addresses:
avc: denied { read } for name="ipv6_route" dev="proc" ino=4026536875 scontext=u:r:zygote:s0 tcontext=u:object_r:proc_net:s0 tclass=file
avc: denied { open } for path="/proc/220/net/ipv6_route" dev="proc" ino=4026536875 scontext=u:r:zygote:s0 tcontext=u:object_r:proc_net:s0 tclass=file
avc: denied { getattr } for path="/proc/220/net/ipv6_route" dev="proc" ino=4026536875 scontext=u:r:zygote:s0 tcontext=u:object_r:proc_net:s0 tclass=file

Change-Id: I5b505ad386a445113bc0a1bb35d4f88f7761c048