qt5webkit: fix URL for 5.6 download

The Qt community releases are not stored under submodules path
component.

Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit 7780cef53540b59816852bfb89aa0c0012a36fbc)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qt5/qt5webkit/qt5webkit.mk

@@ -8,7 +8,7 @@ QT5WEBKIT_VERSION = $(QT5_VERSION)
 ifeq ($(BR2_PACKAGE_QT5_VERSION_LATEST),y)
 QT5WEBKIT_SITE = $(QT5_SITE)
 else
-QT5WEBKIT_SITE = http://download.qt.io/community_releases/5.6/$(QT5_VERSION)/submodules
+QT5WEBKIT_SITE = http://download.qt.io/community_releases/5.6/$(QT5_VERSION)
 endif
 
 QT5WEBKIT_SOURCE = qtwebkit-opensource-src-$(QT5WEBKIT_VERSION).tar.xz