Generalize test models to be reused

Change-Id: I47705cfde2788fa74f8bbcd07100188e4690dbf2
diff --git a/applications/baremetal/models/ethos-u55-32/keyword_spotting_dnn_medium_int8/output.h b/applications/baremetal/models/ethos-u55-32/keyword_spotting_dnn_medium_int8/output.h
index 7458eff..f4c8a4b 100644
--- a/applications/baremetal/models/ethos-u55-32/keyword_spotting_dnn_medium_int8/output.h
+++ b/applications/baremetal/models/ethos-u55-32/keyword_spotting_dnn_medium_int8/output.h
@@ -18,10 +18,10 @@
 
 /******************************************************************************************************************
  * Model: keyword_spotting_dnn_medium_int8
- * Source: https://github.com/ARM-software/ML-zoo/tree/master/models/keyword_spotting/dnn_medium/tflite_int8
+ * Source: https://github.com/ARM-software/ML-zoo/tree/22.02/models/keyword_spotting/dnn_medium/tflite_int8
  * Hexdump: python3 -c 'import numpy;i=numpy.load("output.npy");i.tofile("output.bin");' && xxd -i output.bin > output.h
  ******************************************************************************************************************/
 
 unsigned char expectedOutputData[] __attribute__((
     aligned(16),
-    section("expected_output_data_sec"))) = {0x80, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80};
\ No newline at end of file
+    section("expected_output_data_sec"))) = {0x80, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80};