Various cosmetic and coding-style fixes

 - Fix incorrect whitespace, indentation, and coding style in some places.

 - Drop '/**' Doxygen comments, we don't use Doxygen. Even if we would use
   it, the comments are useless as we don't have any Doxygen markup in there.

 - Use consistent vendor name spelling as per current website (NVIDIA,
   abit, GIGABYTE).

 - Use consistent / common format for "Suited for:" lines in board_enable.c.

 - Add some missing 'void's in functions taking no arguments.

 - Add missing fullstops in sentences, remove them from non-sentences (lists).

Corresponding to flashrom svn r1134.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/flashrom.8 b/flashrom.8
index aab2d02..8e7c02b 100644
--- a/flashrom.8
+++ b/flashrom.8
@@ -351,7 +351,7 @@
 syntax where
 .B model
 can be any of
-.BR 2232H ", "JTAGkey ", or " 4232H
+.BR 2232H ", " JTAGkey ", or " 4232H
 and
 .B interface
 can be any of