char: ipmi: modify NPCM KCS configuration

Modify NPCM IPMI KCS configuration to support all NPCM BMC SoC.

Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Message-Id: <20220717121124.154734-3-tmaimon77@gmail.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>