* opencl: clamp the q4_K decode GEMV's fetch row on a padded x-grid * opencl: enforce the tiling contract of the image KQ/KQV GEMMs * opencl: decide the image KQ/KQV split at the dispatch, not from strides
* opencl: clamp the q4_K decode GEMV's fetch row on a padded x-grid * opencl: enforce the tiling contract of the image KQ/KQV GEMMs * opencl: decide the image KQ/KQV split at the dispatch, not from strides