MLECO-2944: CMSIS device refactoring

* RTE_components header to include corresponding Arm Cortex-M system header
* remove custom CMSIS implementation from repo
* use templates within CMSIS repo instead
* update cmake to use header and source files within CMSIS repo

Change-Id: I3534dae97b93c07a5056471b1d1dedbc78f00aa7
diff --git a/source/hal/platform/simple/include/platform_drivers.h b/source/hal/platform/simple/include/platform_drivers.h
index c9928c0..4140f76 100644
--- a/source/hal/platform/simple/include/platform_drivers.h
+++ b/source/hal/platform/simple/include/platform_drivers.h
@@ -23,7 +23,7 @@
 /* Platform components */
 #include "stubs/glcd.h"             /* LCD stubs to support use cases that use LCD */
 #include "timer_simple_platform.h"  /* timer implementation */
-#include "cmsis.h"                  /* For CPU related defintiions */
+#include "RTE_components.h"         /* For CPU related defintiions */
 
 /** Platform definitions. TODO: These should be removed. */
 #include "peripheral_memmap.h"  /* Peripheral memory map definitions. */