selinux: Peripheral manager: Allow system server to talk to per_mgr

System server can now talk to the peripheral manager. On some PL's
The libpmclient library is linked in by system server.This change
allows the communication to go through.

CRs-Fixed: 796934
Change-Id: I966291c0f305e22192a28426f52eb2bea7f894d3
1 file changed