[][openwrt-24][common][image][Add unified autobuild framework]

[Description]
Add unified autobuild framework

[Release-log]
N/A

Change-Id: I6d070071082899f024cd34cae7b8209d46452592
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/9541683
diff --git a/autobuild/unified/.gitignore b/autobuild/unified/.gitignore
new file mode 100644
index 0000000..862a1cc
--- /dev/null
+++ b/autobuild/unified/.gitignore
@@ -0,0 +1,8 @@
+/*
+!/scripts
+!/global
+!/filogic
+
+!/autobuild.sh
+!/rules
+!.gitignore