libyang REFACTOR rename sized array size to count

... because it reflects the fact that it may not
always (internally) be the size of the array.
diff --git a/src/printer.c b/src/printer.c
index b324030..b215267 100644
--- a/src/printer.c
+++ b/src/printer.c
@@ -77,7 +77,7 @@
     const struct lysc_node_leaf *leaf;
     const struct lysc_node_leaflist *llist;
     const struct lyd_node_term *term;
-    LY_ARRAY_SIZE_TYPE u;
+    LY_ARRAY_COUNT_TYPE u;
 
     assert(node->schema->nodetype & LYD_NODE_TERM);
     term = (const struct lyd_node_term *)node;