tc: Fix block-handle support for filter operations

tc: Fix block-handle support for filter operations

The revert of batchsize accidently reverted more than it should
and broke shared block functionality.  Fix this by restoring the
original functionality.

To reproduce:

	dst_ip 192.0.2.0/24 action drop
Unknown filter "block", hence option "10" is unparsable

Fixes: e991c04d64c0 ("Revert "tc: Add batchsize feature for filter and actions"")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>