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

Commit: https://git.seco.com/edgehog/bsp/rockchip/u-boot-seco-rk/-/commit/8ac4e7df8e446dcf073d31e5b267dcccc24a890b

[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/26e4ced99664c0ca49a10d62a4b39a6f5623972a

[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/483db65bb4177116b4351bd85e52496bebff124e

[DRIVER][DW_MIPI_DSI] Always enable TXREQUESTCLKHS

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