llama.cpp b9935 adds Hexagon VISION RoPE support

The llama.cpp project released version b9935, introducing support for VISION RoPE on the Hexagon DSP. This update includes specific changes to handle strided half-dim views and non-contiguous destination buffers.

• Added VISION RoPE support for Hexagon processors.
• Enabled RoPE on strided half-dim views across all modes.
• Decoupled src0 DMA copy size from row stride in hex-rope.
• Fixed dst spad pitch for non-contiguous destinations.

This release provides binaries for macOS, iOS, Linux, Android, Windows, and openEuler across CPU, GPU, and NPU backends.