mainboard/elmex: Add new board pcm205400

pcm205400 is CPU board equipped with T56N of AMD. We used SeaBIOS and
Windows Embedded Standard 7 to test pcm205400. I disable the port5,
6, and 7 of the PCI-e in elmex/pcm205400/PlatformGnbPcieComplex.h.
I disable the audio capabilities at the 236th line of
elmex/pcm205400/platform_cfg.h. Coding style is modified to avoid the
error and warning that occur when I commit.

Change-Id: I77cb76903fe3c1b500a306426f5399936382695b
Signed-off-by: Yuichi Ito <yui.corebt@gmail.com>
Reviewed-on: https://review.coreboot.org/15929
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
5 files changed