The x_nucleo_iks01a2 shield supports both standard (Mode 1) and
sensorhub (Mode 2) modes through proper dip switch selection.
For more information please refer to:
https://www.st.com/en/ecosystems/x-nucleo-iks01a2.html
This commit moves the original (Mode 1) support under 'standard'
directory and adds the Mode 2 support into 'sensorhub' directory.
Signed-off-by: Armando Visconti <armando.visconti@st.com>