Fix EapFailureNotifier failing to resolve resource name dynamically

Resources#getIdentifier uses the Java package name rather than
the Android APK's package name i.e. the package name generated
for R.java at compile time.

Bug: 160569695
Test: manually verified notification is displayed
Test: atest FrameworksWifiTests
Change-Id: I4c9a17c86e23956478a927021fb1b7ade3b86379
3 files changed