Add OpenCL backend support #680
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This PR adds support for the OpenCL backend. Currently, this support is limited to Adreno GPUs. With the current ggml submodule, only Adreno 7xx series GPUs are supported. However, a previous PR that synced ggml will also enable support for Adreno 6xx series GPUs.
I'll update Local-Diffusion to use the latest ggml-opencl for those who don't want to bother with compiling and using adb
EDIT: Currently crashing due to some unsupported operations. Hopefully, someone will add a CPU fallback. I've opened an issue: ggml-org/llama.cpp#13621