x86: Remove unused option

There is option which is not used:
	CONFIG_ZBOOT_32

Remove it from default x86 config and from whitelist.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2 files changed