staging:rtl8192u: Refactor RT_TRACE - Style

Refactor the MACRO RT_TRACE to add parentheses around the parameter
'component', this clears the checkpatch warning with respect to
precedence issues.

This is a coding style change which should have no impact on runtime
code execution.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8192U.h

@@ -52,7 +52,7 @@
 extern u32 rt_global_debug_component;
 #define RT_TRACE(component, x, args...) \
 	do {							\
-		if (rt_global_debug_component & component)	\
+		if (rt_global_debug_component & (component))	\
 			pr_debug("RTL8192U: " x "\n", ##args);	\
 	} while (0)