cmsis-rtos: add cmain.S IAR seq file to cmsis

0xc0170 · 0xc0170 · commit e8acc2bacbda · 2017-05-17T15:33:18.000+01:00
diff --git a/docs/advanced/cmsis-rtos.md b/docs/advanced/cmsis-rtos.md
@@ -51,6 +51,7 @@ Due to different use cases between mbed OS and CMSIS, we had to make some modifi
 Filename | Description |
 ---------|-------------|
 `cmsis_compiler.h` | Added IAR missing __ALIGNED attribute for earlier (less than 7.8.4) versions |
+``cmain.S`` | custom IAR non-RTOS boot sequence for mbed |
 
 
 ### RTX
