staging: rtl8723bs: os_dep: fixed spacing around operators issue

Fixed a coding style issue by adding spaces around operators in
sdio_ops_linux.c to fix checkpatch checks.

Signed-off-by: Ross Schmidt <ross.schm.dev@gmail.com>
Link: https://lore.kernel.org/r/20200915001731.28986-3-ross.schm.dev@gmail.com


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