Using proper options for blkid.

We can use blikd options to get the device path.

Example:
test:~$ sudo /sbin/blkid -c /dev/null -o device -t LABEL=cloudimg-rootfs
/dev/vda1

Change-Id: Idde0be920bb6a9be534d4c17e0ca98da2beff342
1 file changed