minicpm: make embedding_scale residual_scale logit_scale optional with legacy defaults.#16273

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

vinkal-chudgar:fix/minicpm-quant-fail-16192vinkal-chudgar/llama.cpp:fix/minicpm-quant-fail-16192Copy head branch name to clipboard