mb/gigabyte/ga-b75m-d3{h,v}: Various cleanups

 - Enable LPC TPM support in Kconfig and add pc80/tpm to devicetree
 - Enable VBT support in Kconfig and add VBT files extracted from
   vendor firmware
 - Remove IGPU VBIOS entries from Kconfig
 - Remove unused PS2 definitions in superio.asl
 - Add PWRB ACPI device entry to mainboard.asl
 - Remove duplicate chipset register initialization from mainboard.c
 - Move ITE Super I/O configuration to mainboard_config_superio in
   romstage.c

Signed-off-by: Alex James <theracermaster@gmail.com>
Change-Id: I2d11c55dc809b920bccf55f5f745d9f29b18bbb6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32752
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb b/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb
index 7a3568a..ceb9279 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb
@@ -21,16 +21,15 @@
 
 	device domain 0 on
 		subsystemid 0x1458 0x5000 inherit
-		device pci 00.0 on # host bridge
+		device pci 00.0 on # Host bridge
 			subsystemid 0x1458 0x5000
 		end
 		device pci 01.0 on end # PCIe Bridge for discrete graphics
-		device pci 02.0 on # vga controller
+		device pci 02.0 on # Integrated VGA controller
 			subsystemid 0x1458 0xd000
 		end
 
 		chip southbridge/intel/bd82x6x # Intel Series 7 Panther Point PCH
-
 			# GPI routing
 			register "alt_gp_smi_en" = "0x0000"
 			register "gen1_dec" = "0x003c0a01"
@@ -109,7 +108,7 @@
 				end
 
 				chip drivers/pc80/tpm
-				     device pnp 0c31.0 on end
+					device pnp 0c31.0 on end
 				end
 			end
 			device pci 1f.2 on # SATA Controller 1