Add Kinetis SoC family and rename fsl_frdm_k64f to mk64f12.
This will allow adding new SoCs of the same family and the reuse of code
among SoCs of the family and series.
Change-Id: Iea1a663aef7ce0487f147bdd36f668bebe80deb5
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Moves config options for K64 into its own config file under its
own submenu.
Change-Id: I94ccac54709ab5ec8222daa8634818d9ebc3561d
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>