i2c: riic: Pass register offsets and chip details as OF data

i2c: riic: Pass register offsets and chip details as OF data

With an increasing number of SoCs reusing this driver, each with slight
variations in the RIIC IP, it becomes necessary to support passing these
details as OF data. This approach simplifies the extension of the driver
for other SoCs.

This patch lays the groundwork for adding support for the Renesas RZ/V2H
SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>