Make wifi module use shared metalava args

Also (hopefully) temporarily filter out com.android.server
from the stubs, as the wifi module has a server class in
it.

Bug: 137191822
Test: m
Change-Id: I2c62fc16c676305e9ee739285f49656075f38b97
diff --git a/apex/Android.bp b/apex/Android.bp
index 85d72c7..56f7db2 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -26,6 +26,9 @@
     "--hide Typo " +
     "--hide UnavailableSymbol "
 
+// TODO: remove this server classes are cleaned up.
+mainline_stubs_args += "--hide-package com.android.server "
+
 stubs_defaults {
     name: "framework-module-stubs-defaults-publicapi",
     args: mainline_stubs_args,