[Bounty: $10] Fix Android builds for current MAME core

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Current situation

mame-libertro (the most current MAME libretro core) stopped building for Android several months ago, as first reported on github by @hunterk.


Current MAME builds for Android platforms

Github link


I am guessing that until Redream Releases their Android Build, there will not be anything relating to it for Android, correct? Also would like to see VirtualBoy get Improvements in Vita.