This PR fixes CBMC and unit test for single core FreeRTOS in the FreeRTOS-Kernel PR - https://github.com/FreeRTOS/FreeRTOS-Kernel/pull/716. - xYieldPendings and xIdleTaskHandles are now an array. Update in FreeRTOS unit test. - Update CBMC patches.
* Move forward Kernel submodule pointer * Fixing patches for CBMC proofs * Update proofs to assume cTxLock != 127 * Update proofs to assume cRxLock != 127
The commit ID in aws/amazon-freertos is 0c8e0217f2a43bdeb364b58ae01c6c259e03ef1b.