mb/gigabyte/ga-b75m-d3h: Add tpm support for its onboard tpm socket

Tested against a lenovo-manufactured tpm 1.2 module:
a /dev/tpm0 visible inside GNU/Linux, but there is no menu items in
SeaBIOS' interface, which seems a common issue of SeaBIOS on ivb boards.

Change-Id: Id0dee74d945bae5d77eb669d8b9d468a67aee508
Signed-off-by: Bill XIE <persmule@gmail.com>
Reviewed-on: https://review.coreboot.org/19521
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/gigabyte/ga-b75m-d3h/Kconfig

@@ -18,6 +18,8 @@ config BOARD_SPECIFIC_OPTIONS
 	select UDELAY_TSC
 	select SERIRQ_CONTINUOUS_MODE
 	select MAINBOARD_HAS_LIBGFXINIT
+	select MAINBOARD_HAS_LPC_TPM
+	select TPM
 
 config MMCONF_BASE_ADDRESS
 	hex

src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb

@@ -109,6 +109,10 @@ chip northbridge/intel/sandybridge
 					device pnp 2e.7 off end # GPIO
 					device pnp 2e.a off end # IR
 				end
+
+				chip drivers/pc80/tpm
+				     device pnp 0c31.0 on end
+				end
 			end
 			device pci 1f.2 on # SATA Controller 1
 				subsystemid 0x1458 0xb005