drivers/sensor: stmemsc: add new sets of i2c/spi APIs

Add APIs to:

    1. read/write sensor regs on i2c/spi bus enabling adrress
       auto-increment in a stmemsc specific way.
    2. read/write sensor custom APIs.

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