Fix pktrouter avc denied

03-25 15:28:05.656 I auditd  : type=1400 audit(0.0:48): avc: denied {
net_raw } for comm="wfc-pkt-router" capability=13
scontext=u:r:pktrouter:s0 tcontext=u:r:pktrouter:s0 tclass=capability
permissive=0

Bug: 183664765
Test: Manual

Change-Id: I378b2c0ed8af9e4ba1accfdcc5380a1f9f066b81
diff --git a/whitechapel/vendor/google/pktrouter.te b/whitechapel/vendor/google/pktrouter.te
index 8c436f3..e06c8db 100644
--- a/whitechapel/vendor/google/pktrouter.te
+++ b/whitechapel/vendor/google/pktrouter.te
@@ -8,5 +8,6 @@
 allow pktrouter pktrouter_device:chr_file rw_file_perms;
 allow pktrouter self:netlink_route_socket nlmsg_write;
 allow pktrouter self:packet_socket { bind create read write getattr shutdown};
+allow pktrouter self:capability net_raw;
 
 get_prop(pktrouter, vendor_ims_prop);