x86: remove acpi_srat config v2

use ACPI_NUMA directly

and move srat_32.c to mm/

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index b7b3e4c..c107641 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -13,5 +13,6 @@
 else
 obj-$(CONFIG_NUMA)		+= numa_64.o
 obj-$(CONFIG_K8_NUMA)		+= k8topology_64.o
-obj-$(CONFIG_ACPI_NUMA)		+= srat_64.o
 endif
+obj-$(CONFIG_ACPI_NUMA)		+= srat_$(BITS).o
+