Boot2Qt: Allow the deploy steps to be used in all deploy configurations

Instead of limiting them to a specific deployment configuration, they
are now limited to the B2Qt device.

Change-Id: Ic27d3e4fc50cea0a838223eb41e0e422d7b17b82
Reviewed-by: hjk <hjk@qt.io>

src/plugins/boot2qt/qdbplugin.cpp

@@ -94,8 +94,8 @@ public:
     explicit QdbDeployStepFactory(Id existingStepId)
     {
         cloneStepCreator(existingStepId);
-        setSupportedConfiguration(Constants::QdbDeployConfigurationId);
         setSupportedStepList(ProjectExplorer::Constants::BUILDSTEPS_DEPLOY);
+        setSupportedDeviceType(Constants::QdbLinuxOsType);
     }
 };