ARM: sun4i: dt: Enable dram gate 5 (tve0 clock) for simplefb TV output

commit bec38aaa upstream.

Seems like dram_gate 5 was forgotten when DRAM gate driver was added.

Enable it.

Fixes: 82f8582f (ARM: dts: sun4i: Add DRAM gates)
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>