console/vtxprintf.c: Use | operator for bit operation instead of +

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I478265dcd070dcf3fb2cf2c535b6ca1d86b9a3f2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67564
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/console/vtxprintf.c

@@ -67,7 +67,7 @@ static int number(void (*tx_byte)(unsigned char byte, void *data), unsigned long
 		precision = i;
 	}
 	size -= precision;
-	if (!(type & (ZEROPAD + LEFT))) {
+	if (!(type & (ZEROPAD | LEFT))) {
 		while (size-- > 0)
 			call_tx(' '), count++;
 	}