Explicitly load hidapi as a dependency of the SDL library

This fixes loading on Android 4.2

android-project/app/src/main/java/org/libsdl/app/SDLActivity.java

@@ -136,6 +136,7 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
      */
     protected String[] getLibraries() {
         return new String[] {
+            "hidapi",
             "SDL2",
             // "SDL2_image",
             // "SDL2_mixer",