COMPMID-417: Fix CLNonLinearFilter

CLNonLinearFilter 5x5 was reading out-of-bounds for cross and disk
masks. Makes sure that read is in bounds and elements are shifted after.

Change-Id: I57a611e24cc9cadd50a36881e408a5a0d4ea5a3d
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88056
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
1 file changed