[PATCH] ARM/Samsung: remaining clean up...

[Juergen Beisert]

...in preparation to add the S3C6410 SoC support.

Mostly simplifying the Samsung serial driver and some more cosmetic. These
patches are a re-work and re-send of the remaining ones not yet included from
the previous "ARM/Samsung: more clean up..." series.

The patches 1/3 and 3/3 base on the current "next", because they touch code
for the new S5Pxx SoCs.

jbe