staging: rtl8723bs: Place constant at the right.

Move constant to the right of a relational operator.
This coding style is more common for the kernel code.

Problem found by checkpatch.

Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>