soc: arm: nxp_imx: Link Segger RTT/SystemView sections in DTCM if chosen

Configures Segger RTT and SystemView data linker sections to DTCM by
default on i.MX RT SoCs if there is a zephyr,dtcm chosen node in
devicetree. This fixes a build warning in
samples/subsys/shell/shell_module for the mimxrt1170_evk_cm7 and
mimxrt1170_evk_cm4 platforms, which don't currently have a zephyr,dtcm
chosen node.

Note that there are runtime issues with Segger RTT and SystemView on
this board that need further debug, but submitting this patch now to
address nightly CI failures.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
1 file changed