ARM: ux500: add misc sensors to the device trees

This adds the STMicroelectonics MEMS sensor devices to the Ux500
family device trees:

- Accelerometer
- Magnetometer
- Gyroscope
- Pressure (barometer)

Cc: Lee Jones <lee.jones@linaro.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>