Make net-utils-device-common-bpf only available for module and tests

net-utils-device-common-bpf is design for connectivity module only,
change the visibility to avoid someone outside of the module use it inadvertently.

Bug: 234160319
Change-Id: I3c7c48b60414f19bad8be0bda38ea5af3dc99c86
Test: TH
diff --git a/staticlibs/Android.bp b/staticlibs/Android.bp
index e0b75c5..1d0f49b 100644
--- a/staticlibs/Android.bp
+++ b/staticlibs/Android.bp
@@ -127,7 +127,6 @@
         "//frameworks/libs/net/common/testutils:__subpackages__",
         "//packages/modules/Connectivity:__subpackages__",
         "//packages/modules/NetworkStack:__subpackages__",
-        "//frameworks/base/services/core",
     ],
     libs: [
         "androidx.annotation_annotation",