build: fix opkg flags in rootfs

By default opkg sets the "user" flag when a package is installed,
which resulted in most packages in the rootfs having this flag
set incorrectly. This patch removes the "user" flag from all
installed packages when preparing the rootfs image.

Fixes: #14427
Signed-off-by: Justin Klaassen <justin@tidylabs.app>

include/rootfs.mk

@@ -87,6 +87,11 @@ define prepare_rootfs
 			fi; \
 		done || true \
 	)
+	awk -i inplace \
+		'/^Status:/ { \
+			if ($$3 == "user") { $$3 = "ok" } \
+			else { sub(/,\<user\>|\<user\>,/, "", $$3) } \
+		}1' $(1)/usr/lib/opkg/status
 	$(if $(SOURCE_DATE_EPOCH),sed -i "s/Installed-Time: .*/Installed-Time: $(SOURCE_DATE_EPOCH)/" $(1)/usr/lib/opkg/status)
 	@-find $(1) -name CVS -o -name .svn -o -name .git -o -name '.#*' | $(XARGS) rm -rf
 	rm -rf \