ARM: Move memory mapping into mmu.c

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mm/mm.h

@@ -28,10 +28,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
 
 #endif
 
-struct map_desc;
-struct meminfo;
 struct pglist_data;
 
-void __init create_mapping(struct map_desc *md);
 void __init bootmem_init(void);
 void reserve_node_zero(struct pglist_data *pgdat);