COMPMID-3928: Fix output conversion in gemmlowp_mm_native

This patch solves the following issues that arose from nightly tests:

 - The accumulated result of gemmlowp_mm_native can be either uint or
int and in order to be stored in memory we need to convert it to int.

- The RHS matrix still needs padding on the X dimension. Hence, revert
few changes to add the necessary padding elements.

- Replace zero padding validation tests with assertion in the configure
method of the kernel.

Change-Id: Ib6614a91bd0e98f2b850f52eef14d4fbf55517c8
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4259
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

0 files changed, 0 insertions, 0 deletions