mb/system76/*: Enable measured boot

Tested by checking PCR-2 data is recorded in cbmem log.

Change-Id: I70cb9a93de44e75f3a3ed24979c243fccea1213d
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59963
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jeremy Soller <jeremy@system76.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>

src/mainboard/system76/addw1/Kconfig

@@ -26,6 +26,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_HDA_VERB
 	select SPD_READ_BY_WORD
 	select SYSTEM_TYPE_LAPTOP
+	select TPM_MEASURED_BOOT
 	select TPM_RDRESP_NEED_DELAY
 
 config MAINBOARD_DIR