mb/starlabs/starbook/mtl: Select FSP Type IOT

Select FSP Type IOT so that the FSP blobs from the Intel repo are
used, as the client ones are not available.

Change-Id: I95ab68d1b5bb73738b5b6f9461d2b7771e75f17a
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86831
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>

src/mainboard/starlabs/starbook/Kconfig

@@ -111,6 +111,7 @@ config BOARD_STARLABS_STARBOOK_MTL
 	select EC_STARLABS_MAX_CHARGE
 	select EC_STARLABS_MERLIN
 	select EC_STARLABS_NEED_ITE_BIN
+	select FSP_TYPE_IOT
 	select MAINBOARD_HAS_TPM2
 	select MEMORY_MAPPED_TPM
 	select SOC_INTEL_COMMON_BLOCK_VTD