staging: rtl8723bs: remove extra space

Remove extra space in hal_intf.c.

Signed-off-by: Hao Peng <penghaob@uniontech.com>
Link: https://lore.kernel.org/r/20210312005934.21895-1-penghaob@uniontech.com


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