dt-bindings: pwrap: mediatek: add pwrap support for MT8516

Add binding documentation of pwrap for MT8516 SoCs.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Documentation/devicetree/bindings/soc/mediatek/pwrap.txt

@@ -25,6 +25,7 @@ Required properties in pwrap device node.
 	"mediatek,mt8135-pwrap" for MT8135 SoCs
 	"mediatek,mt8173-pwrap" for MT8173 SoCs
 	"mediatek,mt8183-pwrap" for MT8183 SoCs
+	"mediatek,mt8516-pwrap" for MT8516 SoCs
 - interrupts: IRQ for pwrap in SOC
 - reg-names: Must include the following entries:
   "pwrap": Main registers base