opencl: fix for small models (#11950)
* opencl: fix small shape gemv, remove unused extensions
* opencl: fix `transpose_16`, `dump_tensor`, enforce subgroup size
* opencl: fix for token length < 4
* opencl: use wave size of 64 for all Adreno GPUs
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Co-authored-by: Shawn Gu <quic_shawngu@quicinc.com>
Co-authored-by: Skyler Szot <quic_sszot@quicinc.com>
