src/southbridge: Remove unnecessary semicolon

Change-Id: I52c3ec75d44290b758b6e952344aa9a768bc2617
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16857
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
7 files changed