arm: mach-imx: Add command to expose QB functionality

This command exposes 3 methods:
- check -> checks if the data in volatile memory is valid
	   (integrity check)
- save  -> saves the data to non-volatile memory and
	   erases the data in volatile memory
- erase	-> erases the data in non-volatile memory

cmd_qb can be used either directly in the U-Boot console
or in an uuu script to save the QB data during flashing.
It supports specifying a different boot medium than the
current boot device for saving the data.

Signed-off-by: Viorel Suman <[email protected]>
Signed-off-by: Ye Li <[email protected]>
Signed-off-by: Simona Toaca <[email protected]>

0 files changed, 0 insertions, 0 deletions