sound: ASoC: Convert wm8510 to a new-style i2c driver

Convert the wm8510 codec driver to the new (standard) device
driver binding model.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Geoffrey Wossum <gwossum@acm.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --cc sound/soc/at32/playpaq_wm8510.c
Simple merge

diff --cc sound/soc/codecs/wm8510.c
Simple merge

diff --cc sound/soc/codecs/wm8510.h
Simple merge