rk3399 mipi dsi is not working out of the box

[iyzsong]

there are 3 issues in rk3399 mipi dsi:

• in rk3399.dtsi mipi_dsi compatible is rorkchip,rk3399_mipi_dsi, which should be rockchip,rk3399-mipi-dsi to use the drm/dw_mipi_dsi driver.
• both rk3399_vop.c and drm/rockchip_crtc.c match rockchip,rk3399-vop-big and rockchip,rk3399-vop-lit, but only the crtc one should match them.
• in rk3399-evb.dts as an example, the panel should be put in mipi_dsi node.