MLECO-1933, MLECO-1914, MLECO-1885: Update to 21.05-rc2 components

Core driver and sofware dependencies updated to latest release
candidate revisions. Note: TensorFlow Lite Micro has not been
updated.

Also, gcc warnings for simple_platform target and ad use case have
been fixed.

Change-Id: I455b421f34375a719a941e6e220fe292a57613f5
diff --git a/scripts/py/templates/AudioClips.hpp.template b/scripts/py/templates/AudioClips.hpp.template
index eb0beda..2bcf45c 100644
--- a/scripts/py/templates/AudioClips.hpp.template
+++ b/scripts/py/templates/AudioClips.hpp.template
@@ -23,6 +23,7 @@
 #include <stddef.h>
 
 #define NUMBER_OF_FILES  ({{clips_count}}U)
+
 {% for var_name, size in varname_size %}
 extern const int16_t {{var_name}}[{{size}}];
 {% endfor %}