mb/lenovo/t430: Fix Dual Graphics

* Select ONBOARD_VGA_IS_PRIMARY in driver/lenovo/hybrid_graphics to fix
  disabling iGPU in 'Dual Graphics' on Lenovo T430.
* Remove ONBOARD_VGA_IS_PRIMARY in mainboards that already select
  DRIVERS_LENOVO_HYBRID_GRAPHICS.

Change-Id: I6594fbb957c9a8135fe670d38b5755adf29d2dff
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33254
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/drivers/lenovo/hybrid_graphics/Kconfig

@@ -1,3 +1,5 @@
 config DRIVERS_LENOVO_HYBRID_GRAPHICS
 	bool
 	default n
+	# for dual graphics we need to set this
+	select ONBOARD_VGA_IS_PRIMARY

src/mainboard/lenovo/t400/Kconfig

@@ -62,10 +62,6 @@ config CBFS_SIZE
 	hex
 	default 0x200000
 
-config ONBOARD_VGA_IS_PRIMARY
-	bool
-	default y
-
 config INTEL_GMA_VBT_FILE
 	default "src/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/data.vbt"
 

src/mainboard/lenovo/t420/Kconfig

@@ -75,8 +75,4 @@ config VGA_BIOS_ID
 	string
 	default "8086,0126"
 
-config ONBOARD_VGA_IS_PRIMARY
-	bool
-	default y
-
 endif # BOARD_LENOVO_T420

src/mainboard/lenovo/t420s/Kconfig

@@ -74,8 +74,4 @@ config VGA_BIOS_ID
 	string
 	default "8086,0126"
 
-config ONBOARD_VGA_IS_PRIMARY
-	bool
-	default y
-
 endif # BOARD_LENOVO_T420S

src/mainboard/lenovo/t520/Kconfig

@@ -84,8 +84,4 @@ config VGA_BIOS_FILE
 	string
 	default "pci8086,0126.rom"
 
-config ONBOARD_VGA_IS_PRIMARY
-	bool
-	default y
-
 endif

src/mainboard/lenovo/t530/Kconfig

@@ -62,8 +62,4 @@ config VGA_BIOS_FILE
 	default "pci8086,0106.rom" if BOARD_LENOVO_T530
 	default "pci8086,0166.rom" if BOARD_LENOVO_W530
 
-config ONBOARD_VGA_IS_PRIMARY
-	bool
-	default y
-
 endif