Added input support for cloned layers

This was done with a few changes:
1. Added a layerId in the input info so the InputInfo objects can be
uniquely identified as per layer
2. When setting input info in InputDispatcher, compare InputInfo objects
using layer id instead of input token.
3. Updated the crop region for layers based on the cloned hierarchy so
the input is cropped to the correct region.

Bug: 140756730
Test: InputDispatcherMultiWindowSameTokenTests

Change-Id: I980f5d29d091fecb407f5cd6a289615505800927