dt-bindings: display: st,stm32-dsi: Fix white spaces

Remove unneeded indentation in blank line and space at end of line.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NRob Herring <robh@kernel.org>

Documentation/devicetree/bindings/display/st,stm32-dsi.yaml

@@ -108,7 +108,7 @@ examples:
         resets = <&rcc DSI_R>;
         reset-names = "apb";
         phy-dsi-supply = <&reg18>;
-        
+
         #address-cells = <1>;
         #size-cells = <0>;
 

Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml

@@ -37,7 +37,7 @@ properties:
   port:
     type: object
     description:
-      "Video port for DPI RGB output. 
+      "Video port for DPI RGB output.
       ltdc has one video port with up to 2 endpoints:
       - for external dpi rgb panel or bridge, using gpios.
       - for internal dpi input of the MIPI DSI host controller.