staging: rts5208: fix Lines should not end with a '('.

Fix the following check reported by checkpatch.pl:

CHECK: Lines should not end with a '('
                                        retval = ms_transfer_tpc(

Signed-off-by: Samuel Sjöberg <info@samuelsjoberg.se>
Link: https://lore.kernel.org/r/20220302150328.2722-1-info@samuelsjoberg.se


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>