MLBEDSW-11311 Fix Depthwise CTS failures
Addresses two different issues:
- Added more cases that may require realising the padding to avoid decomposed blocks to execute purely in the margins.
- Fixed an issue with extracting slices of weights which had have been reshaped in a way that requires non-contiguous traversal using strides.
Change-Id: I332e8a99b38b05d7843a39db885069cd7c1485e6 Signed-off-by: Jacob Bohlin jacob.bohlin@arm.com