[AVR32] Use ARRAY_SIZE macro when appropriate

#include <linux/module.h>

#include <linux/root_dev.h>

#include <linux/cpu.h>

#include <linux/kernel.h>

#include <asm/sections.h>

#include <asm/processor.h>

	 * Copy the data so the bootmem init code doesn't need to care

	 * about it.

	 */

	if (mem_range_next_free >=

	    (sizeof(mem_range_cache) / sizeof(mem_range_cache[0])))

	if (mem_range_next_free >= ARRAY_SIZE(mem_range_cache))

		panic("Physical memory map too complex!\n");

	new = &mem_range_cache[mem_range_next_free++];