Update pixel-sepolicy to allow the wifi_ext AIDL service.

Bug: 205044134
Test: Start wifi on an Oriole device using both the
      HIDL and AIDL versions of wifi_ext.
Change-Id: I43b224f5c592200c1eb24c93d14a0e8f7e3f5497
diff --git a/wifi_ext/hal_wifi_ext.te b/wifi_ext/hal_wifi_ext.te
index 2ed274e..17a58df 100644
--- a/wifi_ext/hal_wifi_ext.te
+++ b/wifi_ext/hal_wifi_ext.te
@@ -6,6 +6,7 @@
 
 # Allow to start the IWifi:wifi_ext service
 add_hwservice(hal_wifi_ext, hal_wifi_ext_hwservice);
+add_service(hal_wifi_ext, hal_wifi_ext_service)
 
 # Allow to set up bridged interface
 allowxperm hal_wifi_ext self:udp_socket ioctl { SIOCBRADDBR SIOCBRDELBR SIOCBRADDIF SIOCBRDELIF};