dt-bindings: Fix 'enum' lists with duplicate entries

There's no reason to list the same value twice in an 'enum'. Fix all the
occurrences in the tree. A meta-schema change will catch future ones.

Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Yunfei Dong <yunfei.dong@mediatek.com>
Cc: - <patches@opensource.cirrus.com>
Cc: linux-media@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220401141247.2993925-1-robh@kernel.org

Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml

@@ -13,7 +13,6 @@ maintainers:
 properties:
   compatible:
     enum:
-      - nvidia,tegra20-pmc
       - nvidia,tegra20-pmc
       - nvidia,tegra30-pmc
       - nvidia,tegra114-pmc

Documentation/devicetree/bindings/bus/ti-sysc.yaml

@@ -34,7 +34,6 @@ properties:
     oneOf:
       - items:
           - enum:
-              - ti,sysc-omap2
               - ti,sysc-omap2
               - ti,sysc-omap4
               - ti,sysc-omap4-simple

Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml

@@ -106,7 +106,6 @@ allOf:
           enum:
             - mediatek,mt8173-vcodec-enc
             - mediatek,mt8192-vcodec-enc
-            - mediatek,mt8173-vcodec-enc
 
     then:
       properties:

Documentation/devicetree/bindings/pinctrl/cirrus,madera.yaml

@@ -48,13 +48,12 @@ properties:
               Name of one pin group to configure.
             enum: [ aif1, aif2, aif3, aif4, mif1, mif2, mif3, pdmspk1,
                     pdmspk2, dmic4, dmic5, dmic6, gpio1, gpio2, gpio3,
-                    gpio4, gpio5, gpio6, gpio7, gpio7, gpio8, gpio9,
+                    gpio4, gpio5, gpio6, gpio7, gpio8, gpio9,
                     gpio10, gpio11, gpio12, gpio13, gpio14, gpio15,
-                    gpio16, gpio17, gpio17, gpio18, gpio19, gpio20,
-                    gpio21, gpio22, gpio23, gpio24, gpio25, gpio26,
-                    gpio27, gpio27, gpio28, gpio29, gpio30, gpio31,
-                    gpio32, gpio33, gpio34, gpio35, gpio36, gpio37,
-                    gpio37, gpio38, gpio39 ]
+                    gpio16, gpio17, gpio18, gpio19, gpio20, gpio21,
+                    gpio22, gpio23, gpio24, gpio25, gpio26, gpio27,
+                    gpio28, gpio29, gpio30, gpio31, gpio32, gpio33,
+                    gpio34, gpio35, gpio36, gpio37, gpio38, gpio39 ]
 
           function:
             description:

Documentation/devicetree/bindings/power/supply/bq2415x.yaml

@@ -16,7 +16,6 @@ allOf:
 properties:
   compatible:
     enum:
-      - ti,bq24150
       - ti,bq24150
       - ti,bq24150a
       - ti,bq24151