tty: serial: 8250: Add parentheses to macro

This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.
Furthermore redundant parentheses are removed in an assignment.

Signed-off-by: Anton Würfel <[e-mail]>
Signed-off-by: Phillip Raffeck <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Cc: [e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/8250/8250_core.c

···
 }
 console_initcall(univ8250_console_init);
 
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif

drivers/tty/serial/8250/8250_pci.c

···
 	unsigned int pi;
 	unsigned short sub_serports;
 
-	pi = (c & 0xff);
+	pi = c & 0xff;
 
 	if (pi == 2)
 		return 1;