Add missing cast to BaseType_t (FreeRTOS#1301)

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

Author: aggarg

tasks.c

@@ -893,7 +893,7 @@ static void prvAddNewTaskToReadyList( TCB_t * pxNewTCB ) PRIVILEGED_FUNCTION;
         BaseType_t xCurrentCoreTaskPriority;
         BaseType_t xLowestPriorityCore = ( BaseType_t ) -1;
         BaseType_t xCoreID;
-        const BaseType_t xCurrentCoreID = portGET_CORE_ID();
+        const BaseType_t xCurrentCoreID = ( BaseType_t ) portGET_CORE_ID();
 
         #if ( configRUN_MULTIPLE_PRIORITIES == 0 )
             BaseType_t xYieldCount = 0;