ext: mcux: update to MCUX 2.2 for MKW31Z4

Updates the MCUX device header files for MKW31Z4 to MCUX 2.2.

Origin: NXP MCUXpresso SDK 2.2
URL: mcux.nxp.com
Maintained-by: External

Signed-off-by: Bogdan Davidoaia <bogdan.davidoaia@linaro.org>
6 files changed