drm: rockchip: rk3066_hdmi: set edid fifo address

Fix edid reading error when edid's block > 2.

Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20191211203417.19448-1-jbx6244@gmail.com