x86-64: add CONFIG_PHYSICAL_ALIGN for consistency with i386

Add CONFIG_PHYSICAL_ALIGN (currently as a hardcoded constant) to provide
consistency with i386.  This value is manifest in the bzImage header.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 file changed