staging: rtl8192u: Fix indentation for cleaner code

Fixes indentation for if condition in the file r8190_rtl8256.c for
better readability as suggested by Dan Carpenter.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20191006105300.10181-1-sylphrenadin@gmail.com


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