soc/amd/stoneyridge: Remove errant parenthesis in southbridge.h

Delete an unmatched opening parenthesis in the definition for the EHCI
hub config register definition.  This wasn't causing a problem unless
EHCI debug was enabled.

TEST=Jam Makefile.inc to unconditionally build enable_usbdebug.c and
     verify successful build

Change-Id: I5f461d1573e416b5a8ee24329142e3c46b6a05e3
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29073
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions