Merge "Updates InputDevice.cpp to read input configs from an APEX." am: ad23373a8c am: 131d8dd638 am: 894ab92124 am: 6786e58c6b

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1836694

Change-Id: I12373bdeeccf7edcb601d1717224555bbbbcd9e1