the rest of drivers/*: annotate ->poll() instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 5fbe0f8..be21021 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -249,7 +249,7 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t
 	return ret;
 }
 
-static unsigned int hidraw_poll(struct file *file, poll_table *wait)
+static __poll_t hidraw_poll(struct file *file, poll_table *wait)
 {
 	struct hidraw_list *list = file->private_data;