Add operator<< for palm rejection classes
The operator<< would allow us to dump these objects. This will help us
root-cause the incorrect operation of the palm rejection feature.
Currently, we are observing a bug where sometimes, a device gets into a
bad state and rejects most of the touch input.
These debug prints are aimed at helping us understand what's going on.
Bug: 198472780
Test: adb shell dumpsys input
Merged-In: I47d12afc966c7c5c17536329058ab746c12f261e
Change-Id: I47d12afc966c7c5c17536329058ab746c12f261e
(cherry picked from commit 07d3a5bbdcdc7439e65cb65ec76f4712f2b39979)
10 files changed
