soc: add npck soc driver

For npck3m8k:
1. Update code ram from 320KB to 416KB (0x1005_8000~0x100B_FFFF).
2. Update data ram from 32KB to 64KB.
3. Move fiudiv from hfcbcd1 to hfcbcd2 register

Signed-off-by: Alvis Sun <yfsun@nuvoton.com>
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>