skl mainboards/dt: Move SATA related settings into SATA device scope

Change-Id: I50706d7a077767d2295d6d5f209c30109d607277
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83179
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Erik van den Bogaert <ebogaert@eltan.com>
Reviewed-by: Marvin Evers <marvin.n.evers@gmail.com>
Reviewed-by: Jonathon Hall <jonathon.hall@puri.sm>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/purism/librem_skl/devicetree.cb b/src/mainboard/purism/librem_skl/devicetree.cb
index 5b222fc..7892c7e 100644
--- a/src/mainboard/purism/librem_skl/devicetree.cb
+++ b/src/mainboard/purism/librem_skl/devicetree.cb
@@ -38,8 +38,6 @@
 	register "dptf_enable" = "0"
 
 	# FSP Configuration
-	register "SataPortsEnable[0]" = "1"
-	register "SataPortsEnable[2]" = "1"
 	register "DspEnable" = "0"
 	register "IoBufferOwnership" = "0"
 	register "SkipExtGfxScan" = "1"
@@ -146,7 +144,12 @@
 		device ref south_xhci	on  end
 		device ref south_xdci	on  end
 		device ref thermal	on  end
-		device ref sata		on  end
+		device ref sata		on
+			register "SataPortsEnable" = "{
+				[0] = 1,
+				[2] = 1,
+			}"
+		end
 		device ref pcie_rp5	on  end
 		device ref pcie_rp9	on  end
 		device ref lpc_espi	on