Allow BpfMap to be accessed from NetworkStack

When loading BpfMap class, JNI part is needed for native
methods. Allow the static lib can be compiled with NetworkStack
JNI library.

Test: atest FrameworksNetTests:android.net.connectivity.com.android.server.BpfNetMapsTest
Bug: 276230058
Change-Id: I72ebe801dacd02de6711558d2058c1b756cf3080
diff --git a/staticlibs/native/bpfmapjni/Android.bp b/staticlibs/native/bpfmapjni/Android.bp
index 8babcce..43d61fc 100644
--- a/staticlibs/native/bpfmapjni/Android.bp
+++ b/staticlibs/native/bpfmapjni/Android.bp
@@ -46,6 +46,7 @@
     ],
     visibility: [
         "//packages/modules/Connectivity:__subpackages__",
+        "//packages/modules/NetworkStack:__subpackages__",
         // TODO: remove after NetworkStatsService moves to the module.
         "//frameworks/base/packages/ConnectivityT/service",
     ],