ARM: Move platform memory reservations out of generic code

Move the platform specific bootmem memory reservations out of
arch/arm/mm/mmu.c into their respective platform files.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 25376d4..ed58ddb 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -46,7 +46,7 @@
  */
 void __init paging_init(struct machine_desc *mdesc)
 {
-	bootmem_init();
+	bootmem_init(mdesc);
 }
 
 /*