dt-bindings: nvmem: mediatek: add support for MediaTek mt8192 SoC

This updates dt-binding documentation for MediaTek mt8192
Signed-off-by: Ryan Wu <Yz.Wu@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1612151986-19820-2-git-send-email-Yz.Wu@mediatek.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Documentation/devicetree/bindings/nvmem/mtk-efuse.txt

@@ -7,6 +7,7 @@ Required properties:
 	      "mediatek,mt7622-efuse", "mediatek,efuse": for MT7622
 	      "mediatek,mt7623-efuse", "mediatek,efuse": for MT7623
 	      "mediatek,mt8173-efuse" or "mediatek,efuse": for MT8173
+	      "mediatek,mt8192-efuse", "mediatek,efuse": for MT8192
 	      "mediatek,mt8516-efuse", "mediatek,efuse": for MT8516
 - reg: Should contain registers location and length