mfd: twl6030-pwm.c needs MODULE_LICENSE

twl6030_pwm: module license 'unspecified' taints kernel.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Hemanth V <hemanthv@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/twl6030-pwm.c b/drivers/mfd/twl6030-pwm.c
index 5d25bdc..e8fee14 100644
--- a/drivers/mfd/twl6030-pwm.c
+++ b/drivers/mfd/twl6030-pwm.c
@@ -161,3 +161,5 @@
 	kfree(pwm);
 }
 EXPORT_SYMBOL(pwm_free);
+
+MODULE_LICENSE("GPL");