Revert "op-mode: T2558: version: no need to call this with sudo"
Revert "op-mode: T2558: version: no need to call this with sudo"

This reverts commit f506ba43d44a4218e44b350721de1c890e62998a.

Calling this with sudo is required else some sysfs files can not be read!

vyos@vyos:~$ cat /sys/class/dmi/id/product_serial
cat: /sys/class/dmi/id/product_serial: Permission denied
vyos@vyos:~$ sudo cat /sys/class/dmi/id/product_serial
VMware-42 3f 67 73 77 df c4 80-42 c9 42 af ff 15 de 0b

vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x