dt-bindings: Fix typos

Fix typos in Documentation/devicetree/bindings. The changes are in
descriptions or comments where they shouldn't affect functionality.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230814212822.193684-3-helgaas@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>

dt-bindings: power: sysc-rmobile: Convert to json-schema

Convert the Renesas R-Mobile System Controller (SYSC) Device Tree
binding documentation to json-schema.

Document missing properties.
Drop consumer example, as it does not belong here.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/22150cfd2ef9d57e84eb53a5dfed8379627a9423.1620119210.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>