update llama.cpp org-ref

Author: brittlewis12

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "llama-cpp-sys-2/llama.cpp"]
 	path = llama-cpp-sys-2/llama.cpp
-	url = https://github.com/ggerganov/llama.cpp
+	url = https://github.com/ggml-org/llama.cpp