COMPMID-410 Port BatchNormalization to use fixed point 16

Change-Id: I7d3e9ff70c717ef5e6de2bcfbfd277f39006702f
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/78956
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
3 files changed