swupdate: Add HOMEPAGE variable

Add HOMEPAGE variable to swupdate recipes.

Signed-off-by: Weisser, Pascal <pascal.weisser.ext@karlstorz.com>

recipes-support/swupdate/swupdate.inc

@@ -1,5 +1,6 @@
 SUMMARY = "Image updater for Yocto projects"
 DESCRIPTION = "Application for automatic software update from USB Pen"
+HOMEPAGE = "https://swupdate.org"
 SECTION = "swupdate"
 DEPENDS += "libconfig zlib libubootenv json-c"