PM: Increase dpm suspend timeout

usbhid devices have a 10s timeout waiting for the out queue to clear.
Increased the watchdog to 12s.

Change-Id: I96368fca6dff98e4eba8aedb09c23be964c8f4b4
Signed-off-by: Benoit Goby <benoit@android.com>
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 4b65d5c..5720943 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -870,7 +870,7 @@
 	data.dev = dev;
 	data.tsk = get_current();
 	init_timer_on_stack(&timer);
-	timer.expires = jiffies + HZ * 3;
+	timer.expires = jiffies + HZ * 12;
 	timer.function = dpm_drv_timeout;
 	timer.data = (unsigned long)&data;
 	add_timer(&timer);