Fix compilation for non Android

src/dynapi/SDL_dynapi_procs.h

@@ -924,4 +924,6 @@ SDL_DYNAPI_PROC(SDL_bool,SDL_GameControllerHasRumble,(SDL_GameController *a),(a)
 SDL_DYNAPI_PROC(SDL_bool,SDL_GameControllerHasRumbleTriggers,(SDL_GameController *a),(a),return)
 SDL_DYNAPI_PROC(void,SDL_hid_ble_scan,(SDL_bool a),(a),)
 SDL_DYNAPI_PROC(int,SDL_PremultiplyAlpha,(int a, int b, Uint32 c, const void *d, int e, Uint32 f, void *g, int h),(a,b,c,d,e,f,g,h),return)
+#ifdef __ANDROID__
 SDL_DYNAPI_PROC(int,SDL_AndroidSendMessage,(Uint32 a, int b),(a,b),return)
+#endif