llama.cpp xcframework (llama-b9488-2)

Validating xcframework: identical llama.cpp b9488 binary as llama-b9488-1, but the Info.plist no longer declares a DebugSymbolsPath for the stripped dSYMs (fixes "Missing path …/dSYMs" build failures for remote SPM consumers). Debug symbols ship separately as llama.dSYMs.zip. SPM checksum: 90cc7ecc4044c0c54c009714d2c5269b5146bc64204789b3477f061fa72991a4