am d223b72d: am c69847d6: AI 149496: Backport emulator-related donut fixes into cupca...

am d223b72d: am c69847d6: AI 149496: Backport emulator-related donut fixes into cupcake.   This includes the following fixes:   - remove potential qemud crash at system boot   - fix GPS fix emulation   - fix inter-emulator networking (DNS resolution helper now behaves correctly on all IPv6-capable systems)   - add -prop <name>=<value> option to add system properties on boot   - allow F5 keybinding for SEARCH on keyboard-less hardware configurations   - allow skins to provide a "search" button   - fixed bad QADD/QSUB/QDADD/QDSUB ARM CPU instructions emulation

Merge commit 'd223b72d503dd8f7a87b11daf4871aba10405804'

* commit 'd223b72d503dd8f7a87b11daf4871aba10405804':
  AI 149496: Backport emulator-related donut fixes into cupcake.