build: propagate override information to .packageinfo

Packages overridden with "./scripts/feeds -f" will show up with an
"Override: <original-package-name>" in .packageinfo.

This will be useful to create a corresponding option in .config and
use this information during the build process.

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44335 3c298f89-4303-0410-b956-a3cf2f4a3e73

include/scan.awk

@@ -4,8 +4,10 @@ $1 !~ /^feeds/ { PKGS[$NF]=$0 }
 END {
 	# Filter-out OpenWrt packages which have a feeds equivalent
 	for (pkg in PKGS)
-		if (pkg in FEEDS)
+		if (pkg in FEEDS) {
+			print PKGS[pkg] > of
 			delete PKGS[pkg]
+		}
 	n = asort(PKGS)
 	for (i=1; i <= n; i++) {
 		print PKGS[i]