i2c: s3c: Implant support for S3C2440

i2c: s3c: Implant support for S3C2440

This is a matter of simple additional ifdefery to cater
for the different register layout of the S3C2440 chip.

Signed-off-by: Marek Vasut <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Lukasz Majewski <[email protected]>
Cc: Minkyu Kang <[email protected]>
Cc: Vladimir Zapolskiy <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>