COMPMID-478 Implemnt CL direct convolution 5x5

Change-Id: I4b975aff310cda9964d8c5dcee182d5d5c82741b
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/83474
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
8 files changed