COMPMID-563 - Implement reference and CL/NEON validation for Custom_Convolution (Output U8)

Change-Id: I57a6db857474929322206ee7440e088bc0bbbbe2
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/111080
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
6 files changed