add per family freeRTOSConfig.h also make changes to build with
freertos_kernel cmake
- hard coded configPRIO_BITS based on family
- change configSUPPORT_STATIC_ALLOCATION to 0,
configSUPPORT_DYNAMIC_ALLOCATION to 1
- enable configRECORD_STACK_HIGH_ADDRESS for tracing
- enable INCLUDE_xTaskGetCurrentTaskHandle which is required to compile
stream_buffer (although we don't use it).