Add Binder.getCallingUidOrThrow method

Binder.getCallingUidOrThrow is a pure java method which uses
Binder.isHandlingTransaction @CriticalNative method.

Binder.isHandlingTransaction itself is not exposed a public API.

Bug: 62253865
Fix: 62253865
Test: Added a testcase to BinderTest.java to verify ISE is thrown
Change-Id: I93a1b6c24a4747b8b70c32d291b4706b6159a3d0