arch/x86: use ALIGN_UP instead of ALIGN for better readability

This patch contains the rest of the fixes for this subtree; having one change
for every area would create an unnecessary amouint of patches.

Change-Id: Id92c11d58693292d58cba323c8468db858becfb5
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33630
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/arch/x86/pirq_routing.c

@@ -191,7 +191,7 @@ unsigned long copy_pirq_routing_table(unsigned long addr,
 	const struct irq_routing_table *routing_table)
 {
 	/* Align the table to be 16 byte aligned. */
-	addr = ALIGN(addr, 16);
+	addr = ALIGN_UP(addr, 16);
 
 	/* This table must be between 0xf0000 & 0x100000 */
 	printk(BIOS_INFO, "Copying Interrupt Routing Table to 0x%08lx... ",