freezer: comment out might_sleep()

Currently on ARM signal handling here must happen with
interrupts disabled so this might_sleep will cause a
continuous stream of warnings. It is a known issue
upstream.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index d09af4b..80e7fae 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -43,7 +43,10 @@
 
 static inline bool try_to_freeze(void)
 {
-	might_sleep();
+/* This causes problems for ARM targets and is a known
+ * problem upstream.
+ *	might_sleep();
+ */
 	if (likely(!freezing(current)))
 		return false;
 	return __refrigerator(false);