WifiTrackerLibTests: grant access to Wifi @hide APIs

Bug: 146513037
Test: atest WifiTrackerLibTests
Change-Id: I27662aafa325db333a0547fe371009842c0711ad
diff --git a/wifi/Android.bp b/wifi/Android.bp
index 80703b8..866dead 100644
--- a/wifi/Android.bp
+++ b/wifi/Android.bp
@@ -49,6 +49,7 @@
     "//frameworks/opt/net/wifi/tests/wifitests:__subpackages__",
 
     "//frameworks/base/core/tests/ConnectivityManagerTest",
+    "//frameworks/opt/net/wifi/libs/WifiTrackerLib/tests",
 ]
 
 java_library {