sw64: add pvt device to chip3.dts

Sunway inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I56UNZ

--------------------------------
Signed-off-by: NWang Yingying <wangyingying@wxiat.com>
Signed-off-by: NGu Zitao <guzitao@wxiat.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/sw_64/boot/dts/chip3.dts

@@ -105,6 +105,14 @@
 			};
 		};
 
+		pvt: pvt@0x8030 {
+			#address-cells = <2>;
+			#size-cells = <2>;
+			compatible = "sw64,pvt-vol";
+			reg = <0x8030 0x0 0x0 0x7c00>;
+			status = "okay";
+			};
+
 		spi: spi@0x8032 {
 			#address-cells = <2>;
 			#size-cells = <2>;