x86: revert CONFIG_RELOCATABLE=y defconfig change

This commit:

commit 5cb04df8
Author: Ingo Molnar <mingo@elte.hu>
Date:   Sun May 4 19:49:04 2008 +0200

   x86: defconfig updates

changed CONFIG_RELOCATABLE from n to y, which may lead to a mismatch
between the vmlinux debug information and the runtime location of the
kernel, even when the bootloader does not relocate the kernel.

Revert the specific change. Works for me with GRUB and qemu.

Reference: http://lkml.org/lkml/2008/11/25/243



Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>