base-files: Rebase sysupgrade dropping patch

patches/openwrt/branding/0001-base-files-drop-sysupgrade.patch

-From 963bd64591068ccaee677c117b9062a3c28e3631 Mon Sep 17 00:00:00 2001
+From 0f3a2c1b8e01b97ed3f75119248cdba53bc1b6ec Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <karel.koci@nic.cz>
 Date: Tue, 14 Aug 2018 18:02:41 +0200
 Subject: [PATCH] base-files: drop sysupgrade
@@ -12,7 +12,7 @@ system is dangerous.
 
 diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
 deleted file mode 100755
-index c9615e5..0000000
+index 3cebfb6..0000000
 --- a/package/base-files/files/sbin/sysupgrade
 +++ /dev/null
 @@ -1,285 +0,0 @@
@@ -154,7 +154,7 @@ index c9615e5..0000000
 -}
 -
 -# hooks
--sysupgrade_image_check="fwtool_check_image platform_check_image"
+-sysupgrade_image_check="fwtool_check_signature fwtool_check_image platform_check_image"
 -
 -if [ $SAVE_OVERLAY = 1 ]; then
 -	[ ! -d /overlay/upper/etc ] && {