docs: dt: writing-schema: clarify that schema should describe hardware

The 'title' and 'description' fields in Devicetree schema is supposed to
describe hardware, not the binding itself.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240212150524.81819-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/writing-schema.rst

@@ -31,7 +31,7 @@ $schema
   Indicates the meta-schema the schema file adheres to.
 
 title
-  A one-line description on the contents of the binding schema.
+  A one-line description of the hardware being described in the binding schema.
 
 maintainers
   A DT specific property. Contains a list of email address(es)
@@ -39,7 +39,7 @@ maintainers
 
 description
   Optional. A multi-line text block containing any detailed
-  information about this binding. It should contain things such as what the block
+  information about this hardware. It should contain things such as what the block
   or device does, standards the device conforms to, and links to datasheets for
   more information.