MX5: mx53loco: do not overwrite the console

On this board, the console is always set to the serial line.
Do not allow to overwrite it when video is enabled.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
2 files changed