memblock: Add memblock_free/reserve_reserved_regions()

So we can avoid export memblock_reserved_init_regions()
Suggested by Ben.

-v2: use __init_memblock attribute

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 4df09bd..7d28527 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -48,6 +48,8 @@
 	if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 
 u64 memblock_find_in_range(u64 start, u64 end, u64 size, u64 align);
+int memblock_free_reserved_regions(void);
+int memblock_reserve_reserved_regions(void);
 
 extern void __init memblock_init(void);
 extern void __init memblock_analyze(void);