fixed runtime bugs and compile errors related to GGML_PERF and GGML_DEBUG#2219

ggerganov merged 2 commits intoggml-org:masterggml-org/llama.cpp:masterfrom

mqy:fix-ggml_graph_compute_perf_stats_nodemqy/llama.cpp:fix-ggml_graph_compute_perf_stats_nodeCopy head branch name to clipboard