b7557

cmake: Added more x86_64 CPU backends when building with GGML_CPU_ALL_VARIANTS=On (#18186)

• minor: Consolidated #include <immintrin.h> under ggml-cpu-impl.h

• cmake: Added more x86-64 CPU backends when building with GGML_CPU_ALL_VARIANTS=On

• ivybridge
• piledriver
• cannonlake
• cascadelake
• cooperlake
• zen4

Resolves: #17966

macOS/iOS:

• macOS Apple Silicon (arm64)
• macOS Intel (x64)
• iOS XCFramework

Linux:

• Ubuntu x64 (CPU)
• Ubuntu x64 (Vulkan)
• Ubuntu s390x (CPU)

Windows:

• Windows x64 (CPU)
• Windows arm64 (CPU)
• Windows x64 (CUDA 12) - CUDA 12.4 DLLs
• Windows x64 (CUDA 13) - CUDA 13.1 DLLs
• Windows x64 (Vulkan)
• Windows x64 (SYCL)
• Windows x64 (HIP)

openEuler:

• openEuler x86 (310p)
• openEuler x86 (910b)
• openEuler aarch64 (310p)
• openEuler aarch64 (910b)