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/init.c b/arch/arm/mm/init.c
index 4d27208..1a227ee 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -358,7 +358,7 @@
 }
 #endif
 
-void __init bootmem_init(void)
+void __init bootmem_init(struct machine_desc *mdesc)
 {
 	struct meminfo *mi = &meminfo;
 	unsigned long min, max_low, max_high;
@@ -380,6 +380,9 @@
 	 */
 	reserve_special_regions();
 
+	if (mdesc->reserve)
+		mdesc->reserve();
+
 	/*
 	 * If the initrd is present, reserve its memory.
 	 */