package/openvmtools: fix link in Config.in

The page on Sourceforge says since 2015 that the project has moved to
https://github.com/vmware/open-vm-tools, so update the Config.in help
text link accordingly.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit eda5590fa9fc647598e2a407612b4072ec8cb3cd)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/openvmtools/Config.in

@@ -12,7 +12,7 @@ config BR2_PACKAGE_OPENVMTOOLS
 	help
 	  Open Virtual Machine Tools for VMware guest OS
 
-	  http://open-vm-tools.sourceforge.net/
+	  https://github.com/vmware/open-vm-tools
 
 	  ICU locales, Xerces, and X11 tools are currently not
 	  supported.