COMPMID-1696: (Nighlty) CLDepthwiseConvolution FP16 mismatches

Increases relative tolerance slightly as error was quite small.

Change-Id: I4789c5e3eeb4f2d3aaf2b4c76966474f045af4c1
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/155418
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Tested-by: bsgcomp <bsgcomp@arm.com>
1 file changed