mfd: motmdm: Fix voice call regression with reversed line break

Commit 11ee629ad7ae ("mfd: motmdm: Fix reversed line break")
broke voice calls it seems. Turns out we should only tinker with
the packets for the kfifo for the character devices to keep apps
like minicom happy. With the line break fix we were incorrectly
also fixing up the packets for device drivers that is not
necessary.

Let's fix this by adding a separate function for feeding kfifo.

Signed-off-by: Tony Lindgren <tony@atomide.com>
1 file changed