tests: drivers: i2c: Add support for RZ/G3S-SMARC

Add test support for I2C driver of RZ/G3S-SMARC

Signed-off-by: Hoang Nguyen <hoang.nguyen.jx@bp.renesas.com>
Signed-off-by: Binh Nguyen <binh.nguyen.xw@renesas.com>