phy: phy-rockchip-samsung-hdptx: Fix PHY PLL output 50.25MHz error

When using HDMI PLL frequency division coefficient at 50.25MHz
that is calculated by rk_hdptx_phy_clk_pll_calc(), it fails to
get PHY LANE lock. Although the calculated values are within the
allowable range of PHY PLL configuration.

In order to fix the PHY LANE lock error and provide the expected
50.25MHz output, manually compute the required PHY PLL frequency
division coefficient and add it to ropll_tmds_cfg configuration
table.

Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250427095124.3354439-1-algea.cao@rock-chips.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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