staging: rtl8723bs: conform if's braces to kernel style

Move the open brace of if-statements to the same line. This matches the
brace placement style described in the kernel's style guide.

Signed-off-by: Daniel Watson <ozzloy@gmail.com>
Link: https://lore.kernel.org/r/ZCOGhkLvLtBEo92Y@trent-reznor


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