This commits adds the CCMX91 platform to the DEY
build system. Furthermore, it creates generic ccimx9
support to be used for the CCiMX91 and CCiMX93
platform.
https://onedigi.atlassian.net/browse/DEL-9106
Signed-off-by: Isaac Hermida <isaac.hermida@digi.com>
Signed-off-by: Mike Engel <Mike.Engel@digi.com>