[KERNEL] Scheduler Yield is SVC number on ARM is now 0xFF for compatibility with THUMB code.
[ARCH] ARM - Updated the FreeRTOS Cortex-A9 portable layer.
[INTERFACE] Updated the Interrupt sub-system to support a single controller correctly.
[ARCH] ARM - GIC - Updated GIC to support masking of interrupts, required for modern CA-9 port.
[LOADER] Updated the executable loader to work with modern Read() api.
[KERNEL] Allow FreeRTOS kernel objects to be compiled with THUMB instructions.