Merge branch 'bugfix/freertos_staticqueue_size' into 'master'

StaticQueue_t needs to have the same size as xQUEUE.

https://github.com/espressif/esp-idf/pull/98

Without this change, building FreeRTOS with static allocation enabled succeeds, but trying to create a queue from a static buffer causes an assert because the size of static and dynamic queues differ.

See merge request !236