bletiny - Fix "disc full".
It looks like this broke when a certification compliance issue was
fixed.  The app was specifying a chr_val handle that is one too small.
@@ -702,7 +702,7 @@ bletiny_disc_full_dscs(uint16_t conn_handle)
bletiny_full_disc_prev_chr_val <= chr->chr.def_handle) {
rc = bletiny_disc_all_dscs(conn_handle,
- chr->chr.val_handle,
+ chr->chr.val_handle + 1,
chr_end_handle(svc, chr));
if (rc != 0) {
bletiny_full_disc_complete(rc);
