ksdk: mcux: Remove config HAS_KSDK

Now that all the ksdk/mcux shim drivers use the config HAS_MCUX, we can
remove the config HAS_KSDK.

Change-Id: I94b7db41efae10c9234681aeb57f94e67a33c262
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
3 files changed