change(freertos/idf): Remove xCoreID TCB member for single-core

This commit does the following:

- removes the xCoreID member from the TCB when building for single-core
- xCoreID is no longer hard set to 0 when calling "PinnedToCore" task creation
functions in single-core
- Tidy up or add missing xCoreID asserts for functions that take xCoreID as an
argument:
    - Functions that set/query a variable of a particular core will call
      taskVALID_CORE_ID() to ensure ) 0 <= xCoreID < configNUMBER_OF_CORES
    - Task creation functions that accept xCoreID also call taskVALID_CORE_ID()
      but also allow tskNO_AFFINITY.
- Fix TaskStatus_t
    - Remove xCoreID from TaskStatus_t if configTASKLIST_INCLUDE_COREID is not
      defined.
    - Set xCoreID to 0 when calling vTaskGetInfo() in single-core builds

components/freertos/FreeRTOS-Kernel/portable/riscv/include/freertos/portmacro.h

@@ -38,10 +38,19 @@
 
 /* Macros used instead ofsetoff() for better performance of interrupt handler */
 #define PORT_OFFSET_PX_STACK 0x30
-#define PORT_OFFSET_PX_END_OF_STACK (PORT_OFFSET_PX_STACK + \
-                                     /* void * pxDummy6 */ 4 + \
-                                     /* uint8_t ucDummy7[ configMAX_TASK_NAME_LEN ] */ CONFIG_FREERTOS_MAX_TASK_NAME_LEN + \
-                                     /* BaseType_t xDummyCoreID */ 4)
+
+#if CONFIG_FREERTOS_UNICORE
+#define CORE_ID_SIZE        0
+#else
+#define CORE_ID_SIZE        4
+#endif
+
+#define PORT_OFFSET_PX_END_OF_STACK ( \
+    PORT_OFFSET_PX_STACK \
+    + 4                                 /* void * pxDummy6 */ \
+    + CONFIG_FREERTOS_MAX_TASK_NAME_LEN /* uint8_t ucDummy7[ configMAX_TASK_NAME_LEN ] */ \
+    + CORE_ID_SIZE                      /* BaseType_t xDummyCoreID */ \
+)
 
 #ifndef __ASSEMBLER__