udoo: mx6qdl: Use the preferred form for disabling a symbol
Even though 'CONFIG_USB=n' does the job, let's switch to the more
standard way for disabling a Kconfig symbol.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Fabio Estevam