This feature allows to transfer arbitrary data between host and
ESP32 via JTAG.
The main use cases:
1- Collecting application specific data
2- Lightweight logging to the host
3- System behaviour analysis with SEGGER SystemView
4- Source code coverage
Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: I95dee00ac22891fa326915a3fcac3c088cbb2afc
Reviewed-on: https://review.openocd.org/c/openocd/+/7163
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>