UBIFS: get rid of dbg_err

This patch removes the 'dbg_err()' macro and we now use 'ubifs_err()' instead.
The idea of 'dbg_err()' was to compile out some error message to make the
binary a bit smaller - but I think it was a bad idea.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 147b7ac..5b30c4d 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -668,8 +668,8 @@
 	tmp = UBIFS_CS_NODE_SZ + UBIFS_REF_NODE_SZ * c->jhead_cnt;
 	tmp = ALIGN(tmp, c->min_io_size);
 	if (tmp > c->leb_size) {
-		dbg_err("too small LEB size %d, at least %d needed",
-			c->leb_size, tmp);
+		ubifs_err("too small LEB size %d, at least %d needed",
+			  c->leb_size, tmp);
 		return -EINVAL;
 	}
 
@@ -683,8 +683,8 @@
 	tmp /= c->leb_size;
 	tmp += 1;
 	if (c->log_lebs < tmp) {
-		dbg_err("too small log %d LEBs, required min. %d LEBs",
-			c->log_lebs, tmp);
+		ubifs_err("too small log %d LEBs, required min. %d LEBs",
+			  c->log_lebs, tmp);
 		return -EINVAL;
 	}
 
@@ -863,7 +863,7 @@
 		orph = list_entry(c->orph_list.next, struct ubifs_orphan, list);
 		list_del(&orph->list);
 		kfree(orph);
-		dbg_err("orphan list not empty at unmount");
+		ubifs_err("orphan list not empty at unmount");
 	}
 
 	vfree(c->orph_buf);
@@ -2126,8 +2126,8 @@
 	 */
 	ubi = open_ubi(name, UBI_READONLY);
 	if (IS_ERR(ubi)) {
-		dbg_err("cannot open \"%s\", error %d",
-			name, (int)PTR_ERR(ubi));
+		ubifs_err("cannot open \"%s\", error %d",
+			  name, (int)PTR_ERR(ubi));
 		return ERR_CAST(ubi);
 	}