ARM: OMAP: Fix gpio by switching to generic gpio calls, v2

Fix compile by removing remaining omap specific gpio
calls. Based on earlier patches by Jarkko Nikula.

Also remove old GPIO key code, there is already a patch
to do this with gpio_keys.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/board-sx1.c

@@ -423,9 +423,9 @@ static void __init omap_sx1_init(void)
 
 	/* turn on USB power */
 	/* sx1_setusbpower(1); cant do it here because i2c is not ready */
-	omap_request_gpio(1);	/* A_IRDA_OFF */
-	omap_request_gpio(11);	/* A_SWITCH */
-	omap_request_gpio(15);	/* A_USB_ON */
+	gpio_request(1, "A_IRDA_OFF");
+	gpio_request(11, "A_SWITCH");
+	gpio_request(15, "A_USB_ON");
 	gpio_direction_output(1, 1);	/*A_IRDA_OFF = 1 */
 	gpio_direction_output(11, 0);	/*A_SWITCH = 0 */
 	gpio_direction_output(15, 0);	/*A_USB_ON = 0 */