staging: brcm80211: fix for 'remove unnecessary braces' checkpatch warning

Removed unnecessary braces in single-statement blocks. Used the tools
'uncrustify' and 'coccinelle' to accomplish this.

Signed-off-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>