Android: Don't preserve state of buttons not set through jni between frames.
Android: Don't preserve state of buttons not set through jni between frames.

Ced2911/native,unknownbrackets/native,unknownbrackets/native,libretro/ppsspp-native,unknownbrackets/native,zhykzhykzhyk/ppsspp-native,zhykzhykzhyk/ppsspp-native,libretro/ppsspp-native,hrydgard/native,unknownbrackets/native,hrydgard/native,Ced2911/native,libretro/ppsspp-native,zhykzhykzhyk/ppsspp-native,hrydgard/native,zhykzhykzhyk/ppsspp-native,Ced2911/native,libretro/ppsspp-native,hrydgard/native