This patch adds support for the UDA134X codec and a sound card definition for one of these UDAs connected to the s3c24xx. It is *heavily* based on the one made by Zoltan Devai but:

1 since the UDA is the only use of the L3 protocol I can find I just embedded a stripped-down L3 bit-banging algorithm from the original RMK work. It is really small.

2 the driver has the possibility to specify the pins used by codec via platform data so it can work on SMDK2410, SMDK2440 or any custom design.

3 it tries to guess the right clock source and divider so it is not tied to a particular crystal used.

4 it fixes some bugs.