Various cosmetic and coding style fixes in src/devices.

Various cosmetic and coding style fixes in src/devices.

Also:

 - Improve a few code comments, fix typos, etc.

 - Change a few more variable types to u8/u16/u32 etc.

 - Make some very long lines fit into 80chars/line.

 - Drop a huge duplicated comment, use "@see" to refer to the other one.

 - Reduce nesting level a bit by restructuring some code chunks.

 - s/Config.lb/devicetree.cb/ in a few places.

Abuild-tested.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6019 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1