htlc: move enum side crom daemon/channel.h to daemon/htlc.h

lightningd wants htlcs, but not the old struct channel.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

daemon/commit_tx.h

@@ -2,6 +2,7 @@
 #define LIGHTNING_COMMIT_TX_H
 #include "config.h"
 #include "htlc.h"
+#include <ccan/tal/tal.h>
 
 struct channel_state;
 struct sha256;