Fix ldb related CHECK_DTBS warnings

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Changes in v3:
- add ranges
- collect rob's acked-by tags
- Link to v2: https://patch.msgid.link/20260718-arm_dts_ldb-v2-0-f5669571aa2b@nxp.com

Changes in v2:
- Remove status = disabled at binding example
- collect rob's reviewed-by tags.
- Link to v1: https://patch.msgid.link/20260708-arm_dts_ldb-v1-0-4f5579b85797@nxp.com

---
Frank Li (4):
      dt-bindings: display: bridge: ldb: allow a single reg for fsl,imx6sx-ldb
      dt-bindings: soc: imx-iomuxc-gpr: allow bridge@18 as child node
      dt-bindings: display: lcdif: Allow display0 child node for i.MX6UL
      ARM: dts: imx6ul-tx6ul: rename disp0 to display0

 .../bindings/display/bridge/fsl,ldb.yaml           | 23 ++++----
 .../devicetree/bindings/display/fsl,lcdif.yaml     |  1 +
 .../bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml       | 62 ++++++++++++++++++++++
 arch/arm/boot/dts/nxp/imx/imx6ul-tx6ul.dtsi        |  2 +-
 4 files changed, 78 insertions(+), 10 deletions(-)
---
base-commit: 6c94b38b83a04c43ea49004275f0391404051093
change-id: 20260708-arm_dts_ldb-9ca4c548dded

Best regards,
--  
Frank Li <Frank.Li@nxp.com>