board: ge: bx50v3: b{4,6}50v3 modeline

The b{4,6}50v3 kernel framebuffer console requires a modeline otherwise
the LVDS panel shows garbage.

Signed-off-by: Ian Ray <ian.ray@ge.com>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>

board/ge/bx50v3/bx50v3.c

@@ -809,6 +809,8 @@ int board_late_init(void)
 
 	if (is_b850v3())
 		env_set("videoargs", "video=DP-1:1024x768@60 video=HDMI-A-1:1024x768@60");
+	else
+		env_set("videoargs", "video=LVDS-1:1024x768@65");
 
 	/* board specific pmic init */
 	pmic_init();