wifi: add sepolicy rules for wcnss_service

Fix the folloiwng avc denied:
avc: denied { find } for service=vendor.qcom.PeripheralManager
pid=1221 uid=1000 scontext=u:r:wcnss_service:s0
tcontext=u:object_r:vendor_per_mgr_service:s0
tclass=service_manager permissive=1

Bug: 145579994
Test: Check there is no avc denied.
Change-Id: I85ca1f22e81114a8cf3dffbeb6f4e3ea5e43bcdb
diff --git a/vendor/qcom/common/wcnss_service.te b/vendor/qcom/common/wcnss_service.te
index 8c56234..d474404 100644
--- a/vendor/qcom/common/wcnss_service.te
+++ b/vendor/qcom/common/wcnss_service.te
@@ -21,6 +21,7 @@
 
 # For Peripheral Manager in cnss-daemon
 binder_call(wcnss_service, vendor_per_mgr)
+allow wcnss_service vendor_per_mgr_service:service_manager find;
 
 # files in /sys
 r_dir_file(wcnss_service, sysfs_msm_subsys)