Android build fixes.

sdl.mod/sdl.bmx

@@ -60,6 +60,7 @@ Import "include/raspberrypi/*.h"
 ?android
 ModuleInfo "CC_OPTS: -DGL_GLEXT_PROTOTYPES"
 
+Import "include/android/*.h"
 Import "SDL/include/*.h"
 ?emscripten
 ModuleInfo "CC_OPTS: -DUSING_GENERATED_CONFIG_H"

sdlfreeaudio.mod/sdlfreeaudio.bmx

@@ -48,6 +48,7 @@ Import "../../sdl.mod/sdl.mod/include/linuxx64/*.h"
 Import "../../sdl.mod/sdl.mod/include/raspberrypi/*.h"
 
 ?android
+Import "../../sdl.mod/sdl.mod/include/android/*.h"
 Import "../../sdl.mod/sdl.mod/SDL/include/*.h"
 ?