powerpc: various straight conversions from module.h --> export.h

All these files were including module.h just for the basic
EXPORT_SYMBOL infrastructure.  We can shift them off to the
export.h header which is a way smaller footprint and thus
realize some compile time gains.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

arch/powerpc/mm/mem.c

@@ -17,7 +17,7 @@
  *
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>

arch/powerpc/mm/mmu_context_hash64.c

@@ -18,7 +18,7 @@
 #include <linux/mm.h>
 #include <linux/spinlock.h>
 #include <linux/idr.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
 

arch/powerpc/mm/numa.c

@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/nodemask.h>
 #include <linux/cpu.h>
 #include <linux/notifier.h>

arch/powerpc/mm/slice.c

@@ -29,7 +29,7 @@
 #include <linux/pagemap.h>
 #include <linux/err.h>
 #include <linux/spinlock.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <asm/mman.h>
 #include <asm/mmu.h>
 #include <asm/spu.h>