COMPMID-429: Port CLSoftmaxLayer to QS16.

Change-Id: I3a0394364629654747439372d32f692b6ca29ee0
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/80219
Reviewed-by: Michele DiGiorgio <michele.digiorgio@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
7 files changed