ASoC: Blackfin: drop "-codec" from codec names

The recent multi-component patch incorrectly added "-codec" suffixes to
parts which are not MFD.  Drop the suffix from the machine drivers too.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>