page.h includes ifndef __ASSEMBLY__ guards, but PAGE_SIZE is defined
using "1UL", which the assembler does not support. Use the _AC macro
from const.h to make it available to assembly (and linker scripts).
Signed-off-by: NTim Abbott <tabbott@ksplice.com>
Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>