IAP: Fixed a compiler error on linux and windows

modules/juce_product_unlocking/juce_product_unlocking.cpp

@@ -50,12 +50,15 @@
 
 namespace juce
 {
-   #if JUCE_ANDROID
-    #include "native/juce_android_InAppPurchases.cpp"
-   #elif JUCE_IOS
-    #include "native/juce_ios_InAppPurchases.cpp"
-   #endif
+   #if JUCE_ANDROID || JUCE_IOS
+    #if JUCE_ANDROID
+     #include "native/juce_android_InAppPurchases.cpp"
+    #elif JUCE_IOS
+     #include "native/juce_ios_InAppPurchases.cpp"
+    #endif
+
     #include "in_app_purchases/juce_InAppPurchases.cpp"
+   #endif
 
     #include "marketplace/juce_OnlineUnlockStatus.cpp"