kernel/resource: fix reserve_region_with_split() section mismatch

Impact: cleanup, small kernel text size reduction, no functionality changed

reserve_region_with_split() calls in to __reserve_region_with_split(),
which is an __init function. The only caller of reserve_region_with_split()
is an __init function, so make it __init too.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

kernel/resource.c

@@ -571,7 +571,7 @@ static void __init __reserve_region_with_split(struct resource *root,
 
 }
 
-void reserve_region_with_split(struct resource *root,
+void __init reserve_region_with_split(struct resource *root,
 		resource_size_t start, resource_size_t end,
 		const char *name)
 {