SVN r334499 breaks i386 kernel build

[Michael Butler]

Building /usr/obj/usr/src/i386.i386/sys/SARAH/vm_mmap.o
--- vm_mmap.o ---
/usr/src/sys/vm/vm_mmap.c:245:6: error: use of undeclared identifier
'MAP_32BIT'
            MAP_32BIT | MAP_ALIGNMENT_MASK)) != 0))
            ^
1 error generated.
*** [vm_mmap.o] Error code 1

	imb