bionic/linker: make the buddy allocator compute max_order on its own

Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/linker/linker.c b/linker/linker.c
index 07c7d78..5090b11 100644
--- a/linker/linker.c
+++ b/linker/linker.c
@@ -98,7 +98,7 @@
     .base = LIBBASE,
     .size = LIBLAST - LIBBASE,
     .min_alloc = LIBINC,
-    .max_order = 128,
+    /* max_order will be determined automatically */
     .bitmap = ba_prelink_bitmap,
     .num_entries = sizeof(ba_prelink_bitmap)/sizeof(ba_prelink_bitmap[0]),
 };