mb/aoostar/wtr_r1: Select FSP_TYPE_IOT

Currently, the 3rdparty/fsp submodule contains only the IoT FSP for
ADL-N. However, coreboot's Kconfig is incorrectly applying the IoT
FSP for both Client and IoT configurations, despite the Client FSP
requiring distinct headers.

The aoostar/wtr_r1 board relies on the FSP provided by the 3rdparty/fsp
submodule, which means it has been using the IoT FSP by default. To
ensure the board continues to use the correct FSP as we plan to
introduce Client FSP headers into vendorcode, we are now explicitly
select FSP_TYPE_IOT for the aoostar/wtr_r1 board.

Change-Id: I68feeaaffd825013ae1012694047b067535e7341
Signed-off-by: Ronak Kanabar <ronak.kanabar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82914
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/aoostar/wtr_r1/Kconfig

@@ -9,6 +9,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select DRIVERS_INTEL_DPTF
 	select DRIVERS_SPI_ACPI
 	select DRIVERS_USB_ACPI
+	select FSP_TYPE_IOT
 	select HAVE_ACPI_RESUME
 	select HAVE_ACPI_TABLES
 	select INTEL_GMA_HAVE_VBT