Check the status of 'dualboot' env variable.
If set to "yes", use the dualboot partition table in the script and
restore the variable (default is "no") after resetting the environment.
Also, for dualboot, there's no need to wipe the recovery partition or
boot into recovery mode.
For dualboot, this script programs both systems A and B with the same
images.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
https://onedigi.atlassian.net/browse/DEL-7649
dae2b5000a