staging: rtl8723bs: Resolve "(foo*)" should be "(foo *)" error reported by checkpatch

Cleaned up the code to remove the error "(foo*)" should be "(foo *)"
reported by checkpatch from the file rtl8723bs/os_dep/ioctl_linux.c

Signed-off-by: Shobhit Kukreti <shobhitkukreti@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>