fix dependency on modules-utils-build

net-utils-services-common used to include modules-utils-build as a
static lib, but this has the issues of forcing lib depending on it to
also have the modules-utils-build.
When trying to add this lib to a framework library within the same apex,
it fail the StrictJavaPackagesTest.
By moving the responsibilities to link it to the caller we no longer
have the initial issue

Bug: 343121936
Test: Build target using net-utils-services-common
Test: atest StrictJavaPackagesTest
Flag: Exempt simple dependency fix
Change-Id: I09a741b8f4d6271d8ce6942c0e0d85d27b46df8d
diff --git a/services/net/Android.bp b/services/net/Android.bp
index 3d40f64..927146d 100644
--- a/services/net/Android.bp
+++ b/services/net/Android.bp
@@ -21,6 +21,7 @@
         ":services.net-sources",
     ],
     static_libs: [
+        "modules-utils-build_system",
         "netd-client",
         "networkstack-client",
         "net-utils-services-common",