MLBEDSW-4854: Update to TensorFlow 2.5

This commit updates the flatbuffers generated code
to comply with TensorFlow 2.5, as well as stripping
away some legacy code.

Signed-off-by: Dwight Lidman <dwight.lidman@arm.com>
Change-Id: I01fe47ec2bde6e78fdde21ee1bc0a71f560c53ae
diff --git a/ethosu/vela/tflite/BroadcastToOptions.py b/ethosu/vela/tflite/BroadcastToOptions.py
new file mode 100644
index 0000000..5d11a9e
--- /dev/null
+++ b/ethosu/vela/tflite/BroadcastToOptions.py
@@ -0,0 +1,26 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: tflite
+
+import flatbuffers
+
+class BroadcastToOptions(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsBroadcastToOptions(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = BroadcastToOptions()
+        x.Init(buf, n + offset)
+        return x
+
+    @classmethod
+    def BroadcastToOptionsBufferHasIdentifier(cls, buf, offset, size_prefixed=False):
+        return flatbuffers.util.BufferHasIdentifier(buf, offset, b"\x54\x46\x4C\x33", size_prefixed=size_prefixed)
+
+    # BroadcastToOptions
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+def BroadcastToOptionsStart(builder): builder.StartObject(0)
+def BroadcastToOptionsEnd(builder): return builder.EndObject()