dt-bindings: net: dsa: mediatek,mt7530: change some descriptions to literal

The line endings must be preserved on gpio-controller, io-supply, and
reset-gpios properties to look proper when the YAML file is parsed.

Currently it's interpreted as a single line when parsed. Change the style
of the description of these properties to literal style to preserve the
line endings.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml

@@ -93,7 +93,7 @@ properties:
 
   gpio-controller:
     type: boolean
-    description:
+    description: |
       If defined, LED controller of the MT7530 switch will run on GPIO mode.
 
       There are 15 controllable pins.
@@ -112,7 +112,7 @@ properties:
     maxItems: 1
 
   io-supply:
-    description:
+    description: |
       Phandle to the regulator node necessary for the I/O power.
       See Documentation/devicetree/bindings/regulator/mt6323-regulator.txt for
       details for the regulator setup on these boards.
@@ -124,7 +124,7 @@ properties:
       switch is a part of the multi-chip module.
 
   reset-gpios:
-    description:
+    description: |
       GPIO to reset the switch. Use this if mediatek,mcm is not used.
       This property is optional because some boards share the reset line with
       other components which makes it impossible to probe the switch if the