ASoC: samsung: GPIO descriptor conversion

Merge series from Linus Walleij <linus.walleij@linaro.org>:

This drops unused includes and converts one Samsung
codec to use GPIO descriptors.

diff --cc sound/soc/samsung/bells.c
Simple merge

diff --cc sound/soc/samsung/littlemill.c
Simple merge

diff --cc sound/soc/samsung/lowland.c
Simple merge

diff --cc sound/soc/samsung/speyside.c
Simple merge

diff --cc sound/soc/samsung/tm2_wm5110.c
Simple merge

diff --cc sound/soc/samsung/tobermory.c
Simple merge