MLECO-3449: Update tflite_micro submodule

Updating tflite_micro version according to the release from mlplatform:
https://review.mlplatform.org/plugins/gitiles/ml/ethos-u/ethos-u/+/refs/heads/master/22.08.json#49

Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
Change-Id: I212f1e8540e88aa339b6008371b62f9028b1d3d7
diff --git a/dependencies/tensorflow b/dependencies/tensorflow
index 286aeb5..67e9d8f 160000
--- a/dependencies/tensorflow
+++ b/dependencies/tensorflow
@@ -1 +1 @@
-Subproject commit 286aeb5ff20d3571556e48a5c1af8527f84d3456
+Subproject commit 67e9d8f60d3e37ab02f94a93f016179ef5e96cb6