[openwrt/openwrt] firewall4: add missing PKG_MIRROR_HASH

[LEDE Commits]

jow pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/f1f3d19387ffd8910669750ad2f61f6e0dd94fd4

commit f1f3d19387ffd8910669750ad2f61f6e0dd94fd4
Author: Jo-Philipp Wich <jo at mein.io>
AuthorDate: Wed Dec 7 08:54:56 2022 +0100

    firewall4: add missing PKG_MIRROR_HASH
    
    Fixes: 84183f0d98 ("firewall4: update to latest Git HEAD")
    Signed-off-by: Jo-Philipp Wich <jo at mein.io>
---
 package/network/config/firewall4/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/network/config/firewall4/Makefile b/package/network/config/firewall4/Makefile
index 47b4e060c0..bec03b62d4 100644
--- a/package/network/config/firewall4/Makefile
+++ b/package/network/config/firewall4/Makefile
@@ -11,7 +11,7 @@ PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/firewall4.git
 PKG_SOURCE_DATE:=2022-11-29
 PKG_SOURCE_VERSION:=700a925fd9c1f1ff404e6b125cd5347ad7c45668
-PKG_MIRROR_HASH:=
+PKG_MIRROR_HASH:=18fb7a27399bf2e9e094a4cbacd4e859448c1c9194b6da4a78c9f37a642d1703
 PKG_MAINTAINER:=Jo-Philipp Wich <jo at mein.io>
 PKG_LICENSE:=ISC