COMPMID-1809: Remove padding in NEGEMMConvolutionLayer 64-bit path.

Change-Id: I1806591a2c73a1f057f13d8c6107d7b9796a82c8
Reviewed-on: https://review.mlplatform.org/370
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
22 files changed