clk: imx: Apply some clks only for i.MX93

Enable the LVDS gate, MIPI DSI, PXP, FLEXIO and MU only for i.MX93,
because i.MX91 does not support them.

Update enet clk entry format to align with others.

Fixes: a27bfff8 ("clk: imx: add i.MX91 clk")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20241225001443.883131-1-peng.fan@oss.nxp.com


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