Merge a52fe1a9d29e304498483e19c3adad759a4fcb17 on remote branch

Change-Id: Ib467197c1dbba2cbf828fd6f6898117ff26f4666
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
old mode 100755
new mode 100644
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
old mode 100755
new mode 100644