ARM: berlin: Enable SATA on Sony NSZ-GS7

Marvell Berlin BG2 based Sony NSZ-GS7 has an unpopulated SATA plug
on its PCB solder side. As it is quite easy to populate and I have
done it, enable AHCI and SATA by default.
Acked-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts

@@ -26,8 +26,15 @@ memory {
 	};
 };
 
+&ahci { status = "okay"; };
+
 &eth1 { status = "okay"; };
 
+/* Unpopulated SATA plug on solder side */
+&sata0 { status = "okay"; };
+
+&sata_phy { status = "okay"; };
+
 /* Samsung M8G2FA 8GB eMMC */
 &sdhci2 {
 	non-removable;