drivers: misc: Add nxp,rtxxx-dsp-ctrl

Add the nxp,rtxxx-dsp-ctrl driver.

Responsibility of this driver is to load code executed by Xtensa-family
cores on NXP i.MX RTxxx microcontrollers and to control their run.

Signed-off-by: Vit Stanicek <vit.stanicek@nxp.com>
8 files changed