COMPMID-406: Port CLActivationLayer to use QS8/QS16.

Change-Id: Ia4114984c38e1d2027ad97335b3c6c11f5754e23
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/78727
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
9 files changed