soc/intel/tgl: chipset devicetree: correct TraceHub device alias

Device 1f.7 is TraceHub, not the PCH Thermal device, which doesn't exist
anymore on TGL. Correct the device´s alias.

Reference: Intel doc# 631119-007
Change-Id: I30a4ab1e801f6cdb0f2e03f105bf8cc09592eed8
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62623
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/soc/intel/tigerlake/chipset.cb

@@ -152,6 +152,6 @@ chip soc/intel/tigerlake
 		device pci 1f.4 alias smbus off end
 		device pci 1f.5 alias fast_spi on end
 		device pci 1f.6 alias gbe off end
-		device pci 1f.7 alias thermal off end
+		device pci 1f.7 alias tracehub off end
 	end
 end