HWMON: hdaps - switch to using input-polldev

Switch to using input-polldev skeleton instead of implementing polling loop
by itself.  This also fixes problem with trylock on a mutex in atomic
context.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index e8f44b5..dd9dc47 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -645,6 +645,7 @@
 config SENSORS_HDAPS
 	tristate "IBM Hard Drive Active Protection System (hdaps)"
 	depends on INPUT && X86
+	select INPUT_POLLDEV
 	default n
 	help
 	  This driver provides support for the IBM Hard Drive Active Protection