TWL4030: make LEDs selectable for twl4030_led_init()

Not all boards have both LEDs hooked, so enabling both on
boards with single LED will just waste power. Make it
possible to choose LEDs by adding argument to
twl4030_led_init().

Using this turn on only LEDB for pandora, leave both LEDs
on for all other boards, as it was before this patch.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
diff --git a/include/twl4030.h b/include/twl4030.h
index feaec47..2b2f5ae 100644
--- a/include/twl4030.h
+++ b/include/twl4030.h
@@ -306,6 +306,10 @@
 
 /* LED */
 #define TWL4030_LED_LEDEN				0xEE
+#define TWL4030_LED_LEDEN_LEDAON			(1 << 0)
+#define TWL4030_LED_LEDEN_LEDBON			(1 << 1)
+#define TWL4030_LED_LEDEN_LEDAPWM			(1 << 4)
+#define TWL4030_LED_LEDEN_LEDBPWM			(1 << 5)
 
 /* Keypad */
 #define TWL4030_KEYPAD_KEYP_CTRL_REG			0xD2
@@ -504,7 +508,7 @@
 /*
  * LED
  */
-void twl4030_led_init(void);
+void twl4030_led_init(unsigned char ledon_mask);
 
 /*
  * USB