QtSupport: Add supportsMultipleQtAbis getter

Introduce bool QtSupport::supportsMultipleQtAbis().

Let AndroidQtVersion respond according to the QVersionNumber.

This allows to replace the version arithmetics in several
places with straight forward (and better findable) function calls.

Task-number: QTCREATORBUG-24471
Change-Id: Ib6e39fd6485a54e08ad66f84d4e2582989043419
Reviewed-by: hjk <hjk@qt.io>

src/plugins/android/androidqtversion.h

@@ -43,6 +43,7 @@ public:
     bool isValid() const override;
     QString invalidReason() const override;
 
+    bool supportsMultipleQtAbis() const override;
     ProjectExplorer::Abis detectQtAbis() const override;
 
     void addToEnvironment(const ProjectExplorer::Kit *k, Utils::Environment &env) const override;