leds: ip30: compile if COMPILE_TEST=y

This driver can be compiled on other platforms with small change if
COMPILE_TEST=y.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

drivers/leds/Kconfig

@@ -905,7 +905,7 @@ config LEDS_TPS6105X
 config LEDS_IP30
 	tristate "LED support for SGI Octane machines"
 	depends on LEDS_CLASS
-	depends on SGI_MFD_IOC3
+	depends on SGI_MFD_IOC3 || COMPILE_TEST
 	help
 	  This option enables support for the Red and White LEDs of
 	  SGI Octane machines.

drivers/leds/leds-ip30.c

@@ -3,6 +3,7 @@
  * LED Driver for SGI Octane machines
  */
 
+#include <asm/io.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>