mb/google/kukui: Support eDP panels via PS8640

Some Kukui variants may have eDP panels connected via a PS8640 MIPI bridge
which we may retrieve EDID dynamically.

BUG=b🅱️137517228
TEST=emerge-jacuzzi coreboot chromeos-bootimage; boots and see display.

Change-Id: I85aac5255e6a3e6019299670486214ecffbf9801
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34516
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/kukui/Kconfig

@@ -41,6 +41,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select MAINBOARD_HAS_NATIVE_VGA_INIT
 	select MAINBOARD_FORCE_NATIVE_VGA_INIT
 	select HAVE_LINEAR_FRAMEBUFFER
+	select DRIVER_PARADE_PS8640 if BOARD_GOOGLE_JACUZZI
 
 config MAINBOARD_DIR
 	string