Added ethtool, tree, lshw, lsblk, lsusb to yocto linux

- enabled  generic commands that are useful in
  day to day debugging.
- enabled lsusb dump in IR init.sh

Signed-off-by: Amrathesh <amrathesh@arm.com>
Change-Id: Idd35779d392730bdbdabc65ace1e902855f468f9