[bot] AutoMerging: merge all upstream's changes:

* https://github.com/coolsnowwolf/lede:
  base-files: create empty coremark file
  base-files: fix OpenWrt with Docker will cause NAT loopback (coolsnowwolf#11588)

package/base-files/files/etc/sysctl.conf

@@ -1 +1,5 @@
 # Defaults are configured in /etc/sysctl.d/* and can be customized in this file
+
+net.bridge.bridge-nf-call-arptables = 0
+net.bridge.bridge-nf-call-ip6tables = 0
+net.bridge.bridge-nf-call-iptables = 0

package/base-files/files/lib/preinit/80_mount_root

@@ -17,10 +17,7 @@ missing_lines() {
 do_mount_root() {
 	mount_root
 	boot_run_hook preinit_mount_root
-	have_ro_ext4=$(/bin/cat /proc/mounts |/bin/grep ' / ext4'|/bin/grep 'ro'|/usr/bin/wc -l)
-	if [ "$have_ro_ext4" != "0" ]; then
-		/usr/bin/mount -o remount,rw,noatime /
-	fi
+	[ ! -f /etc/bench.log ] && touch /etc/bench.log
 	[ -f /sysupgrade.tgz -o -f /tmp/sysupgrade.tar ] && {
 		echo "- config restore -"
 		cp /etc/passwd /etc/group /etc/shadow /tmp