dt-bindings: display: bridge: ldb: Document nxp, enable-termination-resistor

dt-bindings: display: bridge: ldb: Document nxp, enable-termination-resistor

Document the optional nxp,enable-termination-resistor property for the
i.MX LVDS display bridge.

This boolean property indicates that the built-in 100 Ohm termination
resistor on the LVDS output is enabled. It is controlled via the HS_EN
bit in the LVDS_CTRL register. Enabling the resistor can improve LVDS
signal quality and may prevent visual artifacts on some boards, but
increases the power consumption.

Signed-off-by: Fabio Estevam <festevam@nabladev.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Link: https://lore.kernel.org/r/20260120231930.2782444-1-festevam@gmail.com