update the reference ipex

Signed-off-by: Lu, Ken <[email protected]>

Author: Lu, Ken

.gitmodules

@@ -3,7 +3,7 @@
 	url = https://github.com/intel-innersource/os.linux.cloud.mvp.fastchat.git
 [submodule "intel-extension-for-pytorch"]
 	path = intel-extension-for-pytorch
-	url = https://github.com/intel-sandbox/cse-ipex.git
+	url = https://github.com/kenplusplus/intel-extension-for-pytorch.git
 [submodule "kube-prometheus"]
 	path = kube-prometheus
 	url = https://github.com/prometheus-operator/kube-prometheus.git