Switch to iree-tf-fork. Update the llvm bump doc. (#8599)

diff --git a/docs/developers/developing_iree/llvm_version_bump.md b/docs/developers/developing_iree/llvm_version_bump.md
index ee4f8ca..4a95dd6 100644
--- a/docs/developers/developing_iree/llvm_version_bump.md
+++ b/docs/developers/developing_iree/llvm_version_bump.md
@@ -110,8 +110,8 @@
 
 ```
 cd ~/src
-git clone https://github.com/tensorflow/tensorflow.git
-git clone https://github.com/tensorflow/mlir-hlo.git
+git clone --branch master https://github.com/google/iree-tf-fork.git
+git clone --branch master https://github.com/google/iree-mhlo-fork.git
 ```
 
 Get MHLO's published version:
diff --git a/integrations/tensorflow/WORKSPACE b/integrations/tensorflow/WORKSPACE
index b279469..c947831 100644
--- a/integrations/tensorflow/WORKSPACE
+++ b/integrations/tensorflow/WORKSPACE
@@ -12,7 +12,7 @@
 git_repository(
     name = "org_tensorflow",
     commit = TENSORFLOW_COMMIT,
-    remote = "https://github.com/tensorflow/tensorflow.git",
+    remote = "https://github.com/google/iree-tf-fork.git",
 )
 
 # Import all of the tensorflow dependencies.