drivers/sensor: add support to LSM6DSO16IS IMU sensor

The LSM6DSO16IS is a system-in-package featuring a 3-axis digital
accelerometer and a 3-axis digital gyroscope for industrial and IoT
solutions. The LSM6DSO16IS embeds a new ST category of processing,
ISPU (intelligent sensor processing unit) to support real-time applications
that rely on sensor data. The ISPU is an ultra-low-power, high-performance
programmable core which can execute signal processing and AI algorithms
in the edge.

https://www.st.com/en/mems-and-sensors/lsm6dso16is.html



This driver is based on stmemsc HAL i/f v2.02

Signed-off-by: Armando Visconti <armando.visconti@st.com>