Revision 3191

Various tiny fixes (trivial):

 - Show PCI IDs as 4-digit numbers always.

 - Cosmetic changes to make UI look more consistent.

 - Drop MODULE_COUNT #define and use ARRAY_SIZE() where needed.

 - Small fix to improve build system (create build/ when not there).

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>