sunxi: Display: Add support for eDP panels connected via an anx9804 bridge

Add support for 4 1.62G lane eDP panels connected via an anx9804 bridge,
such as found on the Colombus devkit.

While at it also fix the wrong indentation of the SSD2828 Kconfig help text
in board/sunxi/Kconfig.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 13f4537..fd6668f 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -526,7 +526,16 @@
 	select VIDEO_LCD_SSD2828
 	select VIDEO_LCD_IF_PARALLEL
 	---help---
-	 7.85" 768x1024 LCD panels, such as LG LP079X01 or AUO B079XAN01.0
+	7.85" 768x1024 LCD panels, such as LG LP079X01 or AUO B079XAN01.0
+
+config VIDEO_LCD_PANEL_EDP_4_LANE_1620M_VIA_ANX9804
+	bool "eDP 4-lane, 1.62G LCD panel via ANX9804 bridge chip"
+	select VIDEO_LCD_ANX9804
+	select VIDEO_LCD_IF_PARALLEL
+	select VIDEO_LCD_PANEL_I2C
+	---help---
+	Select this for eDP LCD panels with 4 lanes running at 1.62G,
+	connected via an ANX9804 bridge chip.
 
 config VIDEO_LCD_PANEL_HITACHI_TX18D42VM
 	bool "Hitachi tx18d42vm LCD panel"