mb/hp/280_g2/devicetree: Use comma separated list for arrays

In order to improve the readability of the settings, use a comma
separated list to assign values to their indexes instead of repeating
the option name for each index.

Don't convert the settings for PCIe root ports as they should stay in
the devicetree at their related root ports.

Change-Id: I85f7c0ddebf88dd21e6c2603ce45f0a4fc868d51
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78600
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/hp/280_g2/devicetree.cb b/src/mainboard/hp/280_g2/devicetree.cb
index 4a575f8..18a5a08 100644
--- a/src/mainboard/hp/280_g2/devicetree.cb
+++ b/src/mainboard/hp/280_g2/devicetree.cb
@@ -16,31 +16,34 @@
 		device pci 04.0 on  end		# CPU Thermal
 		device pci 08.0 on  end		# GMM
 		device pci 14.0 on		# xHCI
-			register "usb2_ports[0]"  = "USB2_PORT_MID(OC0)"
-			register "usb2_ports[1]"  = "USB2_PORT_MID(OC0)"
-			register "usb2_ports[2]"  = "USB2_PORT_MID(OC4)"
-			register "usb2_ports[3]"  = "USB2_PORT_MID(OC4)"
-			register "usb2_ports[4]"  = "USB2_PORT_MID(OC2)"
-			register "usb2_ports[5]"  = "USB2_PORT_MID(OC2)"
-			register "usb2_ports[6]"  = "USB2_PORT_MID(OC0)"
-			register "usb2_ports[7]"  = "USB2_PORT_MID(OC0)"
-			register "usb2_ports[8]"  = "USB2_PORT_MID(OC0)"
-			register "usb2_ports[9]"  = "USB2_PORT_MID(OC0)"
-			register "usb2_ports[10]" = "USB2_PORT_MID(OC1)"
-			register "usb2_ports[11]" = "USB2_PORT_MID(OC1)"
-			register "usb2_ports[12]" = "USB2_PORT_MID(OC_SKIP)"
-			register "usb2_ports[13]" = "USB2_PORT_MID(OC_SKIP)"
-
-			register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC0)"
-			register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC0)"
-			register "usb3_ports[2]" = "USB3_PORT_DEFAULT(OC3)"
-			register "usb3_ports[3]" = "USB3_PORT_DEFAULT(OC3)"
-			register "usb3_ports[4]" = "USB3_PORT_DEFAULT(OC1)"
-			register "usb3_ports[5]" = "USB3_PORT_DEFAULT(OC1)"
-			register "usb3_ports[6]" = "USB3_PORT_DEFAULT(OC_SKIP)"
-			register "usb3_ports[7]" = "USB3_PORT_DEFAULT(OC_SKIP)"
-			register "usb3_ports[8]" = "USB3_PORT_DEFAULT(OC_SKIP)"
-			register "usb3_ports[9]" = "USB3_PORT_DEFAULT(OC_SKIP)"
+			register "usb2_ports" = "{
+				[0]  = USB2_PORT_MID(OC0),
+				[1]  = USB2_PORT_MID(OC0),
+				[2]  = USB2_PORT_MID(OC4),
+				[3]  = USB2_PORT_MID(OC4),
+				[4]  = USB2_PORT_MID(OC2),
+				[5]  = USB2_PORT_MID(OC2),
+				[6]  = USB2_PORT_MID(OC0),
+				[7]  = USB2_PORT_MID(OC0),
+				[8]  = USB2_PORT_MID(OC0),
+				[9]  = USB2_PORT_MID(OC0),
+				[10] = USB2_PORT_MID(OC1),
+				[11] = USB2_PORT_MID(OC1),
+				[12] = USB2_PORT_MID(OC_SKIP),
+				[13] = USB2_PORT_MID(OC_SKIP),
+			}"
+			register "usb3_ports" = "{
+				[0] = USB3_PORT_DEFAULT(OC0),
+				[1] = USB3_PORT_DEFAULT(OC0),
+				[2] = USB3_PORT_DEFAULT(OC3),
+				[3] = USB3_PORT_DEFAULT(OC3),
+				[4] = USB3_PORT_DEFAULT(OC1),
+				[5] = USB3_PORT_DEFAULT(OC1),
+				[6] = USB3_PORT_DEFAULT(OC_SKIP),
+				[7] = USB3_PORT_DEFAULT(OC_SKIP),
+				[8] = USB3_PORT_DEFAULT(OC_SKIP),
+				[9] = USB3_PORT_DEFAULT(OC_SKIP),
+			}"
 		end
 		device pci 14.1 off end		# USB OTG
 		device pci 14.2 on  end		# PCH Thermal