UBI: rename ubi_dbg_dump_vol_info

I am going to remove the "UBI debugging" compilation option and make the
debugging stuff to be always compiled it. This patch is a preparation
which renames 'ubi_dbg_dump_vol_info()' to 'ubi_dump_vol_info()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index a6f4b13..7ef3de0 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -701,7 +701,7 @@
 bad:
 	ubi_err("bad scanning information, error %d", err);
 	ubi_dbg_dump_sv(sv);
-	ubi_dbg_dump_vol_info(vol);
+	ubi_dump_vol_info(vol);
 	return -EINVAL;
 }