ASoC: Move AC'97 support to its own file

Currently the AC'97 support is splattered all throughout soc-core.c. Some
parts are #ifdef'd some parts are not. This patch moves the AC'97 support to
its own file, this should make the code a bit more clearer and also makes it
possible to easily not compile it into the kernel when not needed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --cc include/sound/soc.h
Simple merge

diff --cc sound/soc/Makefile
Simple merge

diff --cc sound/soc/soc-ac97.c
Simple merge

diff --cc sound/soc/soc-core.c
Simple merge