Merge branch 'CR_2035_fix_devpts_lost_in_ramdisk_minda' into 'jh7110-devel'

CR_2035 buildroot: init: fix dev/shm and devpts fs lost in ramdisk rootfs issue.

See merge request sdk/buildroot!64

system/skeleton/init

@@ -18,10 +18,6 @@ for x in $(cat /proc/cmdline); do
 	esac
 done
 
-if [ "x${ROOT}" = "x" ]; then
-	exec /sbin/init
-fi
-
 mount -t sysfs sysfs /sys
 
 mount -t devtmpfs -o nosuid,mode=0755 devtmpfs /dev
@@ -33,6 +29,10 @@ mount -t tmpfs tmpfs /dev/shm
 mount -t tmpfs tmpfs /tmp
 mount -t tmpfs tmpfs /run
 
+if [ "x${ROOT}" = "x" ]; then
+	exec /sbin/init
+fi
+
 export ROOT
 
 mkdir /rootfs