staging: rtl8192u: Patch to modify if, else conditions

In this patch, the if, else conditions are modified to remove the
unnecessary equality checks. This change was detected with help of
coccinelle tool.

Signed-off-by: Chaitanya Dhere <cvijaydh@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>