AndroidQtVersionFactory: Do not detect unsupported/android-g++

See qtbase commit 97fcf3bc987a18f32233fea550eb4a5a22e2b822

Change-Id: I4a94ab12a6bac0505fe4e6da4a72cb8b7e0b7032
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>

src/plugins/android/androidqtversionfactory.cpp

@@ -71,6 +71,8 @@ QtSupport::BaseQtVersion *AndroidQtVersionFactory::create(const Utils::FileName
     if (!evaluator->values(QLatin1String("CONFIG")).contains(QLatin1String("android"))
             && evaluator->value(QLatin1String("QMAKE_PLATFORM")) != QLatin1String("android"))
         return 0;
+    if (evaluator->values(QLatin1String("CONFIG")).contains(QLatin1String("android-no-sdk")))
+        return 0;
     return new AndroidQtVersion(qmakePath, isAutoDetected, autoDetectionSource);
 }