Merge pull request #9637 from Roasbeef/chan-type-required

feature: start to set the require bit for channel_type

feature/default_sets.go

@@ -60,7 +60,7 @@ var defaultSetDesc = setDesc{
 	lnwire.AMPRequired: {
 		SetInvoiceAmp: {}, // 9A
 	},
-	lnwire.ExplicitChannelTypeOptional: {
+	lnwire.ExplicitChannelTypeRequired: {
 		SetInit:    {}, // I
 		SetNodeAnn: {}, // N
 	},