dts: nxp_rt11xx: Refactored RT11xx CM7 and CM4 DTS

RT1170 and RT1160 CM7 and CM4 cores have the same set of differences.
Merge the DTS files for both CM4 and CM7 cores, to create generic
rt11xx_cm4 and rt11xx_cm7 files.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
8 files changed