dt-bindings: arm: fsl: Add various solidrun i.MX8M boards

Add bindings for various SolidRun boards:

- i.MX8MP HummingBoard IIoT - based on the SolidRun i.MX8M Plus SoM
- SolidSense N8 - single-board design with i.MX8M Nano
- i.MX8M Mini System on Module
- i.MX8M Mini HummingBoard Ripple

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>

Author: Josua-SR

Documentation/devicetree/bindings/arm/fsl.yaml

@@ -1049,6 +1049,13 @@ properties:
           - const: phytec,imx8mm-phycore-som        # phyCORE-i.MX8MM SoM
           - const: fsl,imx8mm
 
+      - description: SolidRun i.MX8MM SoM based boards
+        items:
+          - enum:
+              - solidrun,imx8mm-hummingboard-ripple # SolidRun i.MX8MM SoM on HummingBoard Ripple
+          - const: solidrun,imx8mm-sr-som
+          - const: fsl,imx8mm
+
       - description: Variscite VAR-SOM-MX8MM based boards
         items:
           - const: variscite,var-som-mx8mm-symphony
@@ -1077,6 +1084,7 @@ properties:
               - fsl,imx8mn-ddr4-evk       # i.MX8MN DDR4 EVK Board
               - fsl,imx8mn-evk            # i.MX8MN LPDDR4 EVK Board
               - gw,imx8mn-gw7902          # i.MX8MM Gateworks Board
+              - solidrun,solidsense-n8-compact # SolidRun SolidSense N8 Compact
           - const: fsl,imx8mn
 
       - description: ifm i.MX8MN VHIP4 based boards
@@ -1233,6 +1241,7 @@ properties:
         items:
           - enum:
               - solidrun,imx8mp-cubox-m             # SolidRun i.MX8MP SoM on CuBox-M
+              - solidrun,imx8mp-hummingboard-iiot   # SolidRun i.MX8MP SoM on HummingBoard IIoT
               - solidrun,imx8mp-hummingboard-mate   # SolidRun i.MX8MP SoM on HummingBoard Mate
               - solidrun,imx8mp-hummingboard-pro    # SolidRun i.MX8MP SoM on HummingBoard Pro
               - solidrun,imx8mp-hummingboard-pulse  # SolidRun i.MX8MP SoM on HummingBoard Pulse