freertos-smp: update FreeRTOS SMP kernel
freertos-smp: update FreeRTOS SMP kernel

This commit updates the FreeRTOS SMP kernel to commit id 2eff03708
from the upstream smp branch, which is the latest as on date.

espressif/esp-idf,espressif/esp-idf,espressif/esp-idf,espressif/esp-idf