[][mt7988][gps][Add uart1 for Airoha gnss server anld]

[Description]
Add uart1 for Airoha gnss server anld

[Release-log]
N/A

Change-Id: Ide552f01ec15a73aca1f477927632353efb6dfb1
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7383383
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts
index e4630ae..c4a9288 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts
@@ -110,6 +110,12 @@
 	status = "okay";
 };
 
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+	status = "okay";
+};
+
 &i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;
@@ -336,6 +342,13 @@
 			groups = "pcm";
 		};
 	};
+
+	uart1_pins: uart1-pins {
+		mux {
+			function = "uart";
+			groups = "uart1_2";
+		};
+	};
 };
 
 &watchdog {