cmd_nand: show nand scrub confirmation character

When issuing a nand scrub command, the entered character is not displayed
this may be confusing. This patch makes the input character being
displayed if it is a 'y' so that an user knows he is about to scrub his
nand.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
1 file changed