CortexMx ItmPort.cpp relies on ITM_SendChar which is hidden by __CMSIS_GENERIC

[JackDay]

\DeviceCode\Cores\arm\Processors\CortexMx\ItmPort\ItmPort.cpp imports cmsis_generic.h which in turn selects core_cmx.h based on defines, however it also defines __CMSIS_GENERIC which hides the ITM_SendChar function needed by ItmPort.

The fix should be to include ARMCMX.h instead of core_cmx.h but requires fixing the build scripts to include the path CMSIS/Device/ARM/ARMCMX/Include/