package: add missing upstreal url to local packages

Mandatory per packaging guide https://nightly.buildroot.org/#_config_files

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

package/confd/Config.in

@@ -10,3 +10,5 @@ config BR2_PACKAGE_CONFD
 	  A plugin to sysrepo that provides the core YANG models used to
 	  manage an Infix based system.  Configuration can be done using
 	  either the on-system CLI or using NETCONF.
+
+	  https://github.com/kernelkit/infix

package/execd/Config.in

@@ -5,3 +5,4 @@ config BR2_PACKAGE_EXECD
 	help
 	  Generic job queue executor with retry on route changes.
 
+	  https://github.com/kernelkit/infix

package/factory/Config.in

@@ -8,3 +8,5 @@ config BR2_PACKAGE_FACTORY
 	  system to reboot.  Sufficient care has been taken to make the
 	  factory program as secure as possible.  With the worst possible
 	  eftect to only be abused to reboot the system.
+
+	  https://github.com/kernelkit/infix

package/keyack/Config.in

@@ -4,3 +4,5 @@ config BR2_PACKAGE_KEYACK
 	  Blocks until a specific key is pressed and released. Useful
 	  when you want a user to confirm some action by physically
 	  pressing a button.
+
+	  https://github.com/kernelkit/infix

package/klish-plugin-infix/Config.in

@@ -7,6 +7,8 @@ config BR2_PACKAGE_KLISH_PLUGIN_INFIX
 	  A plugin to klish with an opinionated config and some
 	  command extensions, suitable for systems running Infix.
 
+	  https://github.com/kernelkit/infix
+
 if BR2_PACKAGE_KLISH_PLUGIN_INFIX
 
 config BR2_PACKAGE_KLISH_PLUGIN_INFIX_SHELL

package/statd/Config.in

@@ -10,3 +10,5 @@ config BR2_PACKAGE_STATD
 	  operational run-time info. Such as interface state and address.
 	  All data supplied should be fetched from the running system,
 	  which might differ from data configured through confd.
+
+	  https://github.com/kernelkit/infix