mfd: max8998: Simplify obtaining I2C match data and drop max8998_i2c_get_driver_data()

Simplify probe() by using i2c_get_match_data() instead of
max8998_i2c_get_driver_data() for retrieving match data from
OF/ID tables.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230923174928.56824-5-biju.das.jz@bp.renesas.com


Signed-off-by: Lee Jones <lee@kernel.org>