Make java_sdk_library dependencies explicit

modules should specify the submodule of java_sdk_library that the module
actually depends on

Test: CI
Bug: 358613520
Change-Id: Ib4745b76e1f672714a538cc9ae8f1c6ce026d0db
diff --git a/tests/unit/Android.bp b/tests/unit/Android.bp
index 326f262..1230cad 100644
--- a/tests/unit/Android.bp
+++ b/tests/unit/Android.bp
@@ -19,7 +19,7 @@
 
 android_test {
     name: "EmergencyInfoUnitTests",
-    libs: ["android.test.runner"],
+    libs: ["android.test.runner.stubs.system"],
     static_libs: [
         "androidx.test.rules",
         "emergencyinfo-test-common",