Adds a new config HAS_MCUX_ENET to constrain which socs can enable the
mcux ethernet driver. This will prevent users from enabling the driver
on socs like kl25z or kw41z which do not have ethernet mac hardware.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Move the SoC outside of the architecture tree and put them at the same
level as boards and architectures allowing both SoCs and boards to be
maintained outside the tree.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>