staging: rtl8723bs: clean up conditionals

Move all closing braces and parentheses to the end of the line.
Remove braces from 'if' statements with a single 'then' line.
Move logical operators to the end of lines in multiline conditional.
Remove unnecessary parentheses.
Issues found with checkpatch.pl

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>