initrdscripts: merge multiple "mkdir" calls

Reduce overhead.

(From OE-Core rev: 31e6ea22523ded6a4e4f46472ab95ed17efe890b)

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/initrdscripts/files/init-live.sh

@@ -28,8 +28,7 @@ udev_daemon() {
 _UDEV_DAEMON=`udev_daemon`
 
 early_setup() {
-    mkdir -p /proc
-    mkdir -p /sys
+    mkdir -p /proc /sys /run /var/run
     mount -t proc proc /proc
     mount -t sysfs sysfs /sys
     mount -t devtmpfs none /dev
@@ -37,9 +36,6 @@ early_setup() {
     # support modular kernel
     modprobe isofs 2> /dev/null
 
-    mkdir -p /run
-    mkdir -p /var/run
-
     $_UDEV_DAEMON --daemon
     udevadm trigger --action=add
 }