Enable strict_updatability_linting in frameworks/libs/net

Enable the strict_updatability_linting here first as a prior
commit to enable strict_updatability_linting in connectivity
modules.

Bug: 188851968
Test: m lint-check ; atest NetworkStaticLibTests
Change-Id: Idac98a1c85bf5bb86269b1daad2b444cfb58db8a
diff --git a/staticlibs/tests/unit/Android.bp b/staticlibs/tests/unit/Android.bp
index 07a8200..21e8c64 100644
--- a/staticlibs/tests/unit/Android.bp
+++ b/staticlibs/tests/unit/Android.bp
@@ -30,7 +30,8 @@
         "//packages/modules/Connectivity/tests:__subpackages__",
         "//packages/modules/Connectivity/Tethering/tests:__subpackages__",
         "//packages/modules/NetworkStack/tests/integration",
-    ]
+    ],
+    lint: { strict_updatability_linting: true },
 }
 
 android_test {
@@ -46,4 +47,5 @@
     ],
     jarjar_rules: "jarjar-rules.txt",
     test_suites: ["device-tests"],
+    lint: { strict_updatability_linting: true },
 }