ips: use interruptible waits in ips-monitor

This is what I intended to do since:
  1) the driver handles variable waits just fine, and
  2) interruptible waits aren't reported as load in the load avg.

Reported-and-tested-by: Andreas Hartmann <andihartmann@freenet.de>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index 1294a39..85c8ad4 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -1111,7 +1111,7 @@
 		last_msecs = jiffies_to_msecs(jiffies);
 		expire = jiffies + msecs_to_jiffies(IPS_SAMPLE_PERIOD);
 
-		__set_current_state(TASK_UNINTERRUPTIBLE);
+		__set_current_state(TASK_INTERRUPTIBLE);
 		mod_timer(&timer, expire);
 		schedule();