OMAP3: add video support to the mcx board

Add video support to the board with the display
focaltech etm070003dh6.

Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/htkw/mcx/mcx.h b/board/htkw/mcx/mcx.h
index f9601c6..0d4c642 100644
--- a/board/htkw/mcx/mcx.h
+++ b/board/htkw/mcx/mcx.h
@@ -264,6 +264,8 @@
 	MUX_VAL(CP(I2C3_SDA),		(IEN  | PTU | EN  | M0)) \
 	MUX_VAL(CP(I2C4_SCL),		(IEN  | PTU | EN  | M0)) \
 	MUX_VAL(CP(I2C4_SDA),		(IEN  | PTU | EN  | M0)) \
+	MUX_VAL(CP(HDQ_SIO),		(IEN  | PTU | EN  | M4)) \
+					/* GPIO_170 Touchscreen ISR */\
 	/* McSPI */\
 	MUX_VAL(CP(MCSPI1_CLK),		(IEN  | PTD | DIS | M0)) \
 	MUX_VAL(CP(MCSPI1_SIMO),	(IEN  | PTD | DIS | M0)) \