mainboard/roda: Use C89 comments style & remove commented code

Change-Id: I4ce2705a8a07d0388bbdb459b63b59fc10a3aa39
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16929
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
7 files changed