Add support for .dat file as model input

Change-Id: Idb70d178422acd9e25ae64ae52a80cf6f1ff9f71

build_tools/gen_mlmodel_input.py

diff --git a/build_tools/gen_mlmodel_input.py b/build_tools/gen_mlmodel_input.py
index b6cdbbd..beabbad 100755
--- a/build_tools/gen_mlmodel_input.py
+++ b/build_tools/gen_mlmodel_input.py
@@ -63,7 +63,8 @@
     input_shape = [int(x) for x in args.input_shape.split(',')]
     input_ext = os.path.splitext(input_name)[1]
     is_audio = False
-    if (not input_ext) or (input_ext == '.bin') or (input_ext == '.raw'):
+    if (not input_ext) or (input_ext == '.bin') or \
+       (input_ext == '.raw') or (input_ext == '.dat'):
         with open(input_name, mode='rb') as f:
             data = np.fromfile(f, dtype=np.uint8 if is_quant else np.float32)
             data = data[:np.prod(input_shape)].reshape(np.prod(input_shape))