dt-bindings: clock: Add support for i.MX94 LVDS/DISPLAY CSR

Add i.MX94 LVDS/DISPLAY CSR compatible string.

Add clock index for the two CSRs.

Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250707-imx95-blk-ctl-7-1-v3-1-c1b676ec13be@nxp.com


Signed-off-by: Abel Vesa <abel.vesa@linaro.org>