base-files: add menuconfig option for HOME_URL

Add a menuconfig option to set the HOME_URL exposed in
/usr/lib/os-release independent from the
LEDE_DEVICE_MANUFACTURER_URL.

Fixes: FS#1123

Signed-off-by: Mathias Kresin <dev@kresin.me>

package/base-files/files/usr/lib/os-release

@@ -4,7 +4,7 @@ ID="%d"
 ID_LIKE="lede openwrt"
 PRETTY_NAME="%D %V"
 VERSION_ID="%v"
-HOME_URL="%m"
+HOME_URL="%u"
 BUG_URL="%b"
 SUPPORT_URL="%s"
 BUILD_ID="%R"

package/base-files/image-config.in

@@ -202,6 +202,12 @@ if VERSIONOPT
 			 %P .. Product name or "Generic"
 			 %h .. Hardware revision or "v0"
 
+	config VERSION_HOME_URL
+		string
+		prompt "Release Homepage"
+		help
+			This is the release version homepage
+
 	config VERSION_MANUFACTURER
 		string
 		prompt "Manufacturer name"