Integrate u-boot-seco-rk/seco_2017.09_next_SN65DSI84

Commit: https://git.seco.com/edgehog/bsp/rockchip/u-boot-seco-rk/-/commit/370e8d2ffd7b6af6da8fb36aa153fa3400b115fa

[DRIVERS][SN65DSI84] Add Ti SN65DSI84 DSI to LVDS bridge driver

This is a simplified version of the Ti SN65DSI84 DSI to LVDS bridge driver. Support only external oscillator. The usage of DSI clock as reference clock is not supported

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Commit: https://git.seco.com/edgehog/bsp/rockchip/u-boot-seco-rk/-/commit/440ed271c303bf1872915ca26b6757086238b2ae

[DRIVERS][SN65DSI84] Add Ti SN65DSI84 DSI to LVDS bridge driver header file

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Commit: https://git.seco.com/edgehog/bsp/rockchip/u-boot-seco-rk/-/commit/7f60ef542c21bc733191be8217c8b18f2c4b6ed3

[DRIVER][DW_MIPI_DSI] Always enable TXREQUESTCLKHS

Without the clock, it's not possible to execute the dsi transfer