Add include guard in headers files (#8108)

Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>

src/platforms/qurt/px4_layer/get_commands.h

@@ -36,6 +36,8 @@
  * @author Mark Charlebois <charlebm@gmail.com>
  */
 
+#pragma once
+
 __BEGIN_DECLS
 // The commands to run are specified in a target file: commands_<target>.c
 extern const char *get_commands(void);