llama.cpp b9912 release fixes spec naming and spacing

The llama.cpp project has released version b9912, which includes a fix for spec naming and spacing issues.

• macOS Apple Silicon builds are available, but KleidiAI support is disabled.
• Linux binaries cover Ubuntu x64, arm64, s390x, Vulkan, ROCm 7.2, OpenVINO, and SYCL variants.
• Android arm64 CPU builds are provided.
• Windows releases include CPU, OpenCL Adreno, CUDA 12/13, Vulkan, OpenVINO, SYCL, and HIP options.
• openEuler support is partially disabled, with x86 and aarch64 builds available for specific hardware.

This release provides updated binaries across multiple platforms and hardware accelerators.