UBI: rename seb to aeb

After re-naming the 'struct ubi_scan_leb' we should adjust all variables
named 'seb' to something else, because 'seb' stands for "scanning eraseblock".
Let's rename it to 'aeb' which stands for "attaching eraseblock" which is
a bit more consistend and has the same length.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index 264482f..2509502 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -1217,7 +1217,7 @@
 	int i, j, err, num_volumes;
 	struct ubi_ainf_volume *sv;
 	struct ubi_volume *vol;
-	struct ubi_ainf_peb *seb;
+	struct ubi_ainf_peb *aeb;
 	struct rb_node *rb;
 
 	dbg_eba("initialize EBA sub-system");
@@ -1250,14 +1250,14 @@
 		if (!sv)
 			continue;
 
-		ubi_rb_for_each_entry(rb, seb, &sv->root, u.rb) {
-			if (seb->lnum >= vol->reserved_pebs)
+		ubi_rb_for_each_entry(rb, aeb, &sv->root, u.rb) {
+			if (aeb->lnum >= vol->reserved_pebs)
 				/*
 				 * This may happen in case of an unclean reboot
 				 * during re-size.
 				 */
-				ubi_scan_move_to_list(sv, seb, &si->erase);
-			vol->eba_tbl[seb->lnum] = seb->pnum;
+				ubi_scan_move_to_list(sv, aeb, &si->erase);
+			vol->eba_tbl[aeb->lnum] = aeb->pnum;
 		}
 	}