test: Fix some unused identifier warnings

components/freertos/test/test_tasks_snapshot.c

@@ -7,6 +7,7 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "unity.h"
+#include "sdkconfig.h"
 
 #define TEST_MAX_TASKS_NUM	32
 
@@ -15,16 +16,18 @@ TEST_CASE("Tasks snapshot", "[freertos]")
 {
     TaskSnapshot_t tasks[TEST_MAX_TASKS_NUM];
     UBaseType_t tcb_sz;
+#ifndef CONFIG_FREERTOS_UNICORE
     int other_core_id = xPortGetCoreID() == 0 ? 1 : 0;
+#endif
 
     // uxTaskGetSnapshotAll is supposed to be called when all tasks on both CPUs are 
     // inactive and can not alter FreeRTOS internal tasks lists, e.g. from panic handler
     unsigned state = portENTER_CRITICAL_NESTED();
-#if CONFIG_FREERTOS_UNICORE == 0
+#ifndef CONFIG_FREERTOS_UNICORE
     esp_cpu_stall(other_core_id);
 #endif
     UBaseType_t task_num = uxTaskGetSnapshotAll(tasks, TEST_MAX_TASKS_NUM, &tcb_sz);
-#if CONFIG_FREERTOS_UNICORE == 0
+#ifndef CONFIG_FREERTOS_UNICORE
     esp_cpu_unstall(other_core_id);
 #endif
     portEXIT_CRITICAL_NESTED(state);