Link resourceobserver_aidl statically in tests

Also change libresourcemanagerservice to static link it,
since we don't have other libs using this on system partition.

bug: 169200805
Change-Id: I8c23f67f9a3e6b7958e1d7f27998bbbd9af053b7
diff --git a/services/mediaresourcemanager/Android.bp b/services/mediaresourcemanager/Android.bp
index 96f2108..cdf5a4e 100644
--- a/services/mediaresourcemanager/Android.bp
+++ b/services/mediaresourcemanager/Android.bp
@@ -58,6 +58,9 @@
         "libbinder_ndk",
         "libutils",
         "liblog",
+    ],
+
+    static_libs: [
         "resourceobserver_aidl_interface-ndk_platform",
     ],