dt-bindings: clock: mediatek: add pericfg for MT8183

This patch adds binding of pericfg for MT8183.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lkml.kernel.org/r/1566980533-28282-1-git-send-email-chunfeng.yun@mediatek.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt

@@ -14,6 +14,7 @@ Required Properties:
 	- "mediatek,mt7629-pericfg", "syscon"
 	- "mediatek,mt8135-pericfg", "syscon"
 	- "mediatek,mt8173-pericfg", "syscon"
+	- "mediatek,mt8183-pericfg", "syscon"
 - #clock-cells: Must be 1
 - #reset-cells: Must be 1