cortex-M ports: Clarify hardware-saved exception frame size variable#1314

ActoryOu merged 2 commits intoFreeRTOS:mainFreeRTOS/FreeRTOS-Kernel:mainfrom

AhmedIsmail02:rename-hardware-saved-stack-frame-size-variableAhmedIsmail02/FreeRTOS-Kernel:rename-hardware-saved-stack-frame-size-variableCopy head branch name to clipboard