mb/starlabs/*: Enable the Mirror flag for boards that support it

Enable the mirror flag for CML and TGL.

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I51678bdb8d876d238076e12c6315a53c5da59628
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68939
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/starlabs/starbook/Kconfig

@@ -27,6 +27,7 @@ config BOARD_STARLABS_LABTOP_CML
 	select BOARD_ROMSIZE_KB_16384
 	select BOARD_STARLABS_STARBOOK_SERIES
 	select EC_STARLABS_MAX_CHARGE
+	select EC_STARLABS_MIRROR_FLAG
 	select EC_STARLABS_NEED_ITE_BIN
 	select HAVE_INTEL_PTT
 	select HAVE_SPD_IN_CBFS
@@ -43,6 +44,7 @@ config BOARD_STARLABS_STARBOOK_TGL
 	select DRIVERS_INTEL_USB4_RETIMER
 	select EC_STARLABS_KBL_LEVELS
 	select EC_STARLABS_MAX_CHARGE
+	select EC_STARLABS_MIRROR_FLAG
 	select EC_STARLABS_NEED_ITE_BIN
 	select MEMORY_MAPPED_TPM
 	select MAINBOARD_HAS_TPM2

src/mainboard/starlabs/starbook/cmos.default

@@ -15,6 +15,7 @@ legacy_8254_timer=Disable
 # EC
 kbl_timeout=30 seconds
 fn_ctrl_swap=Disable
+mirror_flag=Enable
 # southbridge
 power_on_after_fail=Disable
 # Functions

src/mainboard/starlabs/starbook/cmos.layout

@@ -34,6 +34,7 @@ entries
 608	1	e	1	fn_ctrl_swap
 616	2	e	8	max_charge
 624	2	e	9	fan_mode
+632	1	e	1	mirror_flag
 
 # coreboot config options: southbridge
 800	2	e	6	power_on_after_fail

src/mainboard/starlabs/starbook/variants/tgl/cmos.default

@@ -16,6 +16,7 @@ thunderbolt=Disable
 # EC
 kbl_timeout=30 seconds
 fn_ctrl_swap=Disable
+mirror_flag=Enable
 # southbridge
 power_on_after_fail=Disable
 # Functions

src/mainboard/starlabs/starbook/variants/tgl/cmos.layout

@@ -35,6 +35,7 @@ entries
 608	1	e	1	fn_ctrl_swap
 616	2	e	8	max_charge
 624	2	e	9	fan_mode
+632	1	e	1	mirror_flag
 
 # coreboot config options: southbridge
 800	2	e	6	power_on_after_fail