Extracts the Segger SystemView configuration for the tracing sample from
sample.yaml into a separate file. Increases the idle thread stack size
to fix overflows observed on i.MX RT boards. Removes
CONFIG_USE_SEGGER_RTT=y which is selected by CONFIG_SEGGER_SYSTEMVIEW.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
