beeceem: Fix position of braces in conditional statements in InterfaceTx.c

This corrects the position of (opening) braces in if-conditionals to make checkpatch shut up.

Signed-off-by: Ralph Mueck <linux-kernel@rmueck.de>
Signed-off-by: Matthias Oefelein <ma.oefelein@arcor.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>