Merge branch 'feature/option_freertos_idle_pm_ctrl_v3.1' into 'release/v3.1'

Add option to FreeRTOS sleep module (backport v3.1)

See merge request sdk/ESP8266_RTOS_SDK!805

components/freertos/Kconfig

@@ -45,5 +45,13 @@ config FREERTOS_TIMER_STACKSIZE
     default 2048
     help
         The size of the stack used by the timer in FreeRTOS.
+
+config ENABLE_FREERTOS_SLEEP
+    bool "Enable FreeRTOS SLEEP"
+    default n
+    help
+        Enable this option, FreeRTOS sleep module at idle task will be enable.
         
+        The module is not working now, so if users want to make it work, they should do this themselves. 
+
 endmenu

components/freertos/freertos/tasks.c

@@ -3310,6 +3310,7 @@ static portTASK_FUNCTION( prvIdleTask, pvParameters )
 		}
 		#endif /* configUSE_IDLE_HOOK */
 
+		#if CONFIG_ENABLE_FREERTOS_SLEEP
 		/* This conditional compilation should use inequality to 0, not equality
 		to 1.  This is to ensure portSUPPRESS_TICKS_AND_SLEEP() is called when
 		user defined low power mode	implementations require
@@ -3359,6 +3360,7 @@ static portTASK_FUNCTION( prvIdleTask, pvParameters )
 			}
 		}
 		#endif /* configUSE_TICKLESS_IDLE */
+		#endif /* CONFIG_ENABLE_FREERTOS_SLEEP */
 	}
 }
 /*-----------------------------------------------------------*/