This CL adds the soc drivers for npcx9 series. There are two soc part
numbers, npcx9m3f and npcx9m6f, are introduced. We also move soc family
configurations from /nuvoton_npcx/npcx7/Kconfig.soc to
nuvoton_npcx/Kconfig.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>