ipq806x: D7800 only has a single sata port

Signed-off-by: John Crispin <[email protected]>

target/linux/ipq806x/files-4.14/arch/arm/boot/dts/qcom-ipq8064-d7800.dts

@@ -148,6 +148,7 @@
 		};
 
 		sata@29000000 {
+			ports-implemented = <0x1>;
 			status = "ok";
 		};