pico-imx6ul: Remove CONFIG_FSL_USDHC from .h

The CONFIG_FSL_USDHC is defined inside "mx6_common.h", which is
already included in this file.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
1 file changed