drivers: i3c: npcx: introduce NPCX I3C driver

This implements basic driver to utilize the I3C IP block
on NPCX.

1. I3C mode: Main controller mode only.
2. Transfer: Support SDR only.
3. IBI: Support Hot-Join, IBI(MDB).
   Controller request is not supported.
4. Support 3 I3C modules:
   I3C1(3.3V), I3C2(1.8V, espi mode), (I3C3 1.8V or 3.3V)

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