staging: rts5208: remove unnecessary parentheses in rtsx_chip.c

This commit removes unnecessary parentheses, that have been flagged
by checkpatch.pl in rtsx_chip.c

Signed-off-by: Benjamin Philip <benjamin.philip495@gmail.com>
Link: https://lore.kernel.org/r/4395499086a3188ea4c4d190460967990bd7a670.1632209460.git.benjamin.philip495@gmail.com


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