sensor/stmemsc: Introduce STMEMS Standard C Drivers

This package contains platform independent drivers written in C
language for STMicroelectronics sensors. The aim of this package
is to provide a common, clean and stable interface to access sensor
registers.

Origin: ST Microelectronics
License: BSD-3-Clause
URL: https://www.st.com/en/embedded-software/c-driver-mems.html


Commit: v1.00
Purpose: provide a common and stable i/f to access sensor registers
Maintained-by: ST Microelectronics

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