MLBEDSW-2303: Bug fix Split

Usage of the Split operator caused assert failure.

Signed-off-by: Louis Verhaard <louis.verhaard@arm.com>
Change-Id: Ibe09b9021f768b86731bdc361f9a0875c4379e4b
diff --git a/ethosu/vela/operation.py b/ethosu/vela/operation.py
index e28adef..338f962 100644
--- a/ethosu/vela/operation.py
+++ b/ethosu/vela/operation.py
@@ -214,7 +214,7 @@
             outputs = self.outputs
             assert num_splits == len(outputs)
 
-        if self.type == "SplitV":
+        elif self.type == "SplitV":
             num_splits = self.attrs.get("num_splits")
             input_tens = self.inputs[0]
             size_tens = self.inputs[1]