Move hexdump32() to lib/hexdump.

Needs printk and is not a console core function.

Change-Id: Id90a363eca133af4469663c1e8b504baa70471e0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5155
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

src/include/console/console.h

@@ -86,7 +86,6 @@ void post_log_clear(void);
 void mainboard_post(u8 value);
 void __attribute__ ((noreturn)) die(const char *msg);
 int do_printk(int msg_level, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
-void hexdump32(char LEVEL, const void *d, int len);
 
 #if defined(__BOOT_BLOCK__) && !CONFIG_BOOTBLOCK_CONSOLE || \
     (defined(__PRE_RAM__) && !defined(__BOOT_BLOCK__)) && !CONFIG_EARLY_CONSOLE