omap: zoom: host should not pull up wl1271's irq line

The wl1271's irq line is completely controlled by the 1271 device, and
the host does not not need to pull it up.

While there's no functional effect, letting the host pull this line up is
just redundant, and wastes power.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-zoom.c

@@ -48,7 +48,7 @@ static void __init omap_zoom_init_early(void)
 #ifdef CONFIG_OMAP_MUX
 static struct omap_board_mux board_mux[] __initdata = {
 	/* WLAN IRQ - GPIO 162 */
-	OMAP3_MUX(MCBSP1_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
+	OMAP3_MUX(MCBSP1_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 	/* WLAN POWER ENABLE - GPIO 101 */
 	OMAP3_MUX(CAM_D2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 	/* WLAN SDIO: MMC3 CMD */