arm/km/mgcoge3un: enhance "waitforne" feature

The mgcoge3un waits to be released from mgcoge3ne at startup.
This patch enhances this feature with the possibility to interrupt
this wait if a key is pressed.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
1 file changed