ARM: dra7x/am57x: Remove pin input/output config from WAKEUP pins

The WAKEUP_X pins are always an input no matter the pinmux mode.
However, the 18th bit that typical configures a pin as an input is
considered reserved for the WAKEUP_X pins. Therefore, for any WAKEUP
pin remove any configuration that sets that pin as an input. Since
those pins are only inputs remove any output configuration from those
pins.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
diff --git a/board/ti/dra7xx/mux_data.h b/board/ti/dra7xx/mux_data.h
index bf40144..1bfb362 100644
--- a/board/ti/dra7xx/mux_data.h
+++ b/board/ti/dra7xx/mux_data.h
@@ -372,7 +372,7 @@
 	{I2C2_SDA, (M0 | PIN_INPUT_PULLUP)},	/* i2c2_sda.i2c2_sda */
 	{I2C2_SCL, (M0 | PIN_INPUT_PULLUP)},	/* i2c2_scl.i2c2_scl */
 	{WAKEUP0, (M15 | PULL_UP)},	/* Wakeup0.safe for dcan1_rx */
-	{WAKEUP2, (M14 | PIN_OUTPUT)},	/* Wakeup2.gpio1_2 */
+	{WAKEUP2, (M14)},		/* Wakeup2.gpio1_2 */
 };
 
 #ifdef CONFIG_IODELAY_RECALIBRATION