[IA64] put kdump_find_rsvd_region in __init

kdump_find_rsvd_region() is only called by
reserve_memory() which is in __init, so it seems that
kdump_find_rsvd_region() should also be in there.

Signed-off-by: Simon Horman <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/kernel/efi.c

···
 /* find a block of memory aligned to 64M exclude reserved regions
    rsvd_regions are sorted
  */
-unsigned long
+unsigned long __init
 kdump_find_rsvd_region (unsigned long size,
 		struct rsvd_region *r, int n)
 {