Patch from Ben Dooks

S3C2410/S3C2440 new serial driver

this patch includes the following

- clock selection using clock core
- handling for both 2410 and 2440 uarts
- uart suspend/resume support
- Dimitry Andric's fix for un-initialised spinlocks
- Herbert Poetzl's fixes for the following
-> break character recognition
-> Magic-SYSRQ handling
-> Uart software flow control (IrDA console)

Updated to include rmk's comments from Patch #2234/1
and fix a few checks for serial clocks, as well as
merging fixes from rmk that had taken time to go
through the biteepr to release.

Signed-off-by: Ben Dooks
Signed-off-by: Russell King