Address new netmgrd data connectivity denials.

Patch fixes the following denials seen when trying
to use data service on the phone.

denied  { create } for  pid=5042 comm="netmgrd" scontext=u:r:netmgrd:s0 tcontext=u:r:netmgrd:s0 tclass=packet_socket
denied  { bind } for  pid=5042 comm="netmgrd" scontext=u:r:netmgrd:s0 tcontext=u:r:netmgrd:s0 tclass=packet_socket
denied  { write } for  pid=5042 comm="netmgrd" scontext=u:r:netmgrd:s0 tcontext=u:r:netmgrd:s0 tclass=packet_socket
denied  { read } for  pid=5042 comm="netmgrd" path="socket:[17231]" dev="sockfs" ino=17231 scontext=u:r:netmgrd:s0 tcontext=u:r:netmgrd:s0 tclass=packet_socket

denied  { write } for  pid=541 comm="netmgrd" name="property_service" dev="tmpfs" ino=6583 scontext=u:r:netmgrd:s0 tcontext=u:object_r:property_socket:s0 tclass=sock_file
denied  { set } for property=net.rmnet_usb0.dns1 scontext=u:r:netmgrd:s0 tcontext=u:object_r:system_prop:s0 tclass=property_service

denied  { nlmsg_read } for  pid=6365 comm="ip" scontext=u:r:netmgrd:s0 tcontext=u:r:netmgrd:s0 tclass=netlink_route_socket
denied  { nlmsg_write } for  pid=6365 comm="ip" scontext=u:r:netmgrd:s0 tcontext=u:r:netmgrd:s0 tclass=netlink_route_socket

Change-Id: Iee4bb5b4f3c9d17419ebf69f2764151ec7979249
Move gpu_device type and rules to core policy.

Change-Id: I3ce0b4bd25e078698a1c50242aaed414bf5cb517
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>