CComponentsFooter: use same corner properties like parent object

This avoids paint of unnecessary edges inside parent object.


Origin commit data
------------------
Commit: df4151936b
Author: Thilo Graf <dbt@novatux.de>
Date: 2014-05-18 (Sun, 18 May 2014)

src/gui/components/cc_frm_footer.cpp

@@ -115,6 +115,7 @@ void CComponentsFooter::setButtonLabels(const struct button_label_s * const cont
 	//button label container (chain object) itself is concurrent the parent object for button objects.
 	if (chain == NULL){
 		chain = new CComponentsFrmChain(x_chain, CC_CENTERED, w_chain, height, 0, CC_DIR_X, this);
+		chain->setCorner(this->corner_rad, this->corner_type);
 		chain->doPaintBg(false);
 	}
 	if (!chain->empty())