Bugfix: Update BuildGuideCrossCompilation.md

 * Go back to armnn-devenv before making tflite directory
 * This is so tflite directory is in correct location for cmake
 * -DTF_LITE_GENERATED_PATH=$HOME/armnn-devenv/tflite

Signed-off-by: Francis Murtagh <francis.murtagh@arm.com>
Change-Id: I74730df3175cba724efcdd41cda2c2e413a5ce39
diff --git a/BuildGuideCrossCompilation.md b/BuildGuideCrossCompilation.md
index 5aaa382..9f778e0 100644
--- a/BuildGuideCrossCompilation.md
+++ b/BuildGuideCrossCompilation.md
@@ -143,6 +143,7 @@
 git clone https://github.com/tensorflow/tensorflow.git
 cd tensorflow/
 git checkout fcc4b966f1265f466e82617020af93670141b009
+cd ..
 mkdir tflite
 cd tflite
 cp ../tensorflow/tensorflow/lite/schema/schema.fbs .