COMPMID-832: Decrease validation coverage of QS8/QS16

Change-Id: I5366d11aefdb8f3ba7326ed7527eb216c4de0668
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/118372
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
32 files changed