microblaze: Kconfig: Enable drivers for Microblaze

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 0048f11..74712cb 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1996,7 +1996,7 @@
 
 config FB_XILINX
 	tristate "Xilinx frame buffer support"
-	depends on FB && XILINX_VIRTEX
+	depends on FB && (XILINX_VIRTEX || MICROBLAZE)
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT