toradex: configblock: avoid line continuations

Fix issue as reported by checkpatch.pl. Leave long lines as line
continuation in text output is not recommended.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>