This commit changes:
o DD wipe is no longer executed on / or we loose access
to system commands before wipe is complete. Wiping
root beginning and end is not mandatory as on reinstall
it is reformatted.
o Partitions on rootfs, other than platform-backup are
removed.
o Bootloader is removed so that boot from secondary devices
can be done. This is useful at host reinstall. W/o this
change boot hangs and manual intervention is needed.
Change-Id: I1ab9f70d00a38568fc00063cdaa54ec3be48dc33
Closes-Bug: 1877579
Signed-off-by: Ovidiu Poncea <ovidiu.poncea@windriver.com>