staging: wfx: fix warnings of logical continuation

Fix check warnings of logical continuations
should be on the previous line.
Issue detected by checkpatch tool.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Link: https://lore.kernel.org/r/20191019140719.2542-4-jbi.octave@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>