inputflinger: only use UTF-8 characters in device name and location

Resolved aborts by passing UTF-8 valid
strings to InputDeviceIdentifier.

Test: ./inputflinger_switch_input_fuzzer
Bug: 352086709
Flag: EXEMPT bugfix in fuzzer

Change-Id: I20d02933160f2582d3fc183daa558de5a48b2563
2 files changed