bcmdhd : fix bracket issue in wl_cfgvendor.c

This patch fix an issue introduced by the following commit :
fbe2f38d8f6f8c127f93a197a5abe73b45c7393b

Change-Id: I9144e991e6370f973c0715abf18b27f37dd1f30e
Tracked-On: https://jira01.devtools.intel.com/browse/AW-3683


Signed-off-by: Louis, FabienX <fabienx.louis@intel.com>
Reviewed-on: https://android.intel.com/561421


Reviewed-by: Korpershoek, MattijsX <mattijsx.korpershoek@intel.com>
Reviewed-by: Tasayco Loarte, VictorX <victorx.tasayco.loarte@intel.com>