domain: Create a dummy domain for qc's rmt and let it access /dev/mem

Old (pre-L) binaries will fail hard if unable to access mem. Create
a domain that rmt_storage can use to get those perms
Netd: receive broadcast message from hostapd

allow netd to create dir /data/misc/wifi/sockets
allow netd to create sockets wpa_ctrl_*
allow netd to access dir /data/misc/dhcp

Change-Id: Ibd48cd40a61f8e846ae54400dd628eb3287b93bb
CRs-Fixed: 685913
Sepolicy: Add Profile service as system service.

Change-Id: Iceb95f23e8f422c604dc75768319cb769df54ae2