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

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index 10d6ae8..ca07366 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -157,7 +157,7 @@
 int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
 			     void *data, int len);
 
-unsigned int rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
+__poll_t rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
 			poll_table *wait);
 
 #else
@@ -258,7 +258,7 @@
 	return -ENXIO;
 }
 
-static inline unsigned int rpmsg_poll(struct rpmsg_endpoint *ept,
+static inline __poll_t rpmsg_poll(struct rpmsg_endpoint *ept,
 				      struct file *filp, poll_table *wait)
 {
 	/* This shouldn't be possible */