You’re on the right track 
But I can’t tell if values are correct.
Better have a look into the FreeRTOS docs regarding RTOS for ARM Cortex-M and
e.g. Understanding priority levels of ISR and FreeRTOS APIs - #16 by aggarg which contains a pretty good explanation of this rather confusing topic.
There are much more posts regarding interrupt priorities in the forum (search: configMAX_SYSCALL_INTERRUPT_PRIORITY).