[source] arm64: boot-wrapper: add mirror checksum

[LEDE Commits]

jow pushed a commit to source.git, branch master:
https://git.lede-project.org/998632bae2722ffdf98aed1ad69e7b520a773b32

commit 998632bae2722ffdf98aed1ad69e7b520a773b32
Author: Jo-Philipp Wich <jo at mein.io>
AuthorDate: Tue Nov 8 22:33:39 2016 +0100

    arm64: boot-wrapper: add mirror checksum
    
    Some builders have troubles cloning the boot-wrapper-aarch64.git repository so
    provide a mirror checksum to allow downloading from sources.lede-project.org
    instead.
    
    Signed-off-by: Jo-Philipp Wich <jo at mein.io>
---
 target/linux/arm64/image/boot-wrapper/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/arm64/image/boot-wrapper/Makefile b/target/linux/arm64/image/boot-wrapper/Makefile
index cc31e01..841eb03 100644
--- a/target/linux/arm64/image/boot-wrapper/Makefile
+++ b/target/linux/arm64/image/boot-wrapper/Makefile
@@ -15,6 +15,7 @@ PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://git.kernel.org/pub/scm/linux/kernel/git/mark/boot-wrapper-aarch64.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_VERSION:=c51dde817b5ed5b8f741b67ac51bd67bd87b4a2a
+PKG_MIRROR_MD5SUM:=2f029a20c906af68e9fe067c1b0ed394e4c455e142454a039f41d1d82d6e17c8
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 PKG_MAINTAINER:=Florian Fainelli <florian at openwrt.org>