android: Don't pause emulation when entering PiP

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt

@@ -328,7 +328,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     }
 
     override fun onPause() {
-        if (emulationState.isRunning) {
+        if (emulationState.isRunning && emulationActivity?.isInPictureInPictureMode != true) {
             emulationState.pause()
         }
         super.onPause()