Add support for uint16_t

Signed-off-by: Jeremy Johnson <jeremy.johnson@arm.com>
Change-Id: Ieab5c56db49549726dd5efb0d9b728713fc6f86a
diff --git a/python/serializer/tosa_serializer.py b/python/serializer/tosa_serializer.py
index b29f963..660619b 100644
--- a/python/serializer/tosa_serializer.py
+++ b/python/serializer/tosa_serializer.py
@@ -53,6 +53,7 @@
     "INT32",
     "INT48",
     "FLOAT",
+    "UINT16",
 ]
 
 ByteMask = np.uint64(0xFF)