Qnx: Fix the QnxUtils::qdeInstallProces() implementation

Change-Id: I08805d2901b4e7577497594ea0aaf5c45bec4a5f
Reviewed-by: David Kaspar <dkaspar@blackberry.com>
Reviewed-by: Tobias Nätterlund <tobias.naetterlund@kdab.com>
Reviewed-by: Nicolas Arnaud-Cormos <nicolas@kdab.com>

src/plugins/qnx/qnxutils.cpp

@@ -284,7 +284,7 @@ QString QnxUtils::sdkInstallerPath(const QString &ndkPath)
 QString QnxUtils::qdeInstallProcess(const QString &ndkPath, const QString &option, const QString &version)
 {
     QString installerPath = sdkInstallerPath(ndkPath);
-    if (ndkPath.isEmpty())
+    if (installerPath.isEmpty())
         return QString();
 
     return QString::fromLatin1("%1 -nosplash -application com.qnx.tools.ide.sdk.manager.core.SDKInstallerApplication "