Re-add JNI_OnLoad to the symbols list so Android symbols are resolved properly

src/dynapi/SDL_dynapi.sym

@@ -1,5 +1,6 @@
 SDL3_0.0.0 {
   global:
+    JNI_OnLoad;
     SDL_AddEventWatch;
     SDL_AddGamepadMapping;
     SDL_AddGamepadMappingsFromRW;