ARM: ux500: add ABx500 pinctrl tables

This adds pin control tables for the ABx500 (AB8500 and
AB8505) PMIC, which also happens to act as a multimedia
pin expander on the ux500 platforms.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>