AAPT: faketouch feature implied if no touchscreen feature requested.

This changes the default implied feature of 'android.hardware.touchscreen'
to 'android.hardware.faketouch' if no 'android.hardware.touchscreen'
feature is requested, required or otherwise.

Bug:30571641
Change-Id: I1e41242d4b1dc549cf69741d2a309baf476d084e
2 files changed