Litecoin: fixed getting bech32 address from P2SH embeded segwit input

lib/primitives/input.js

@@ -208,7 +208,7 @@ Input.prototype.getAddress = function getAddress(coin) {
   if (coin)
     return coin.getAddress();
 
-  if (this.witness.items.length > 0)
+  if (this.witness.items.length > 0 && this.script.getSize() === 0)
     return this.witness.getInputAddress();
 
   return this.script.getInputAddress();

lib/script/script.js

@@ -2396,7 +2396,7 @@ Script.prototype.getMultisigInput = function getMultisigInput() {
  */
 
 Script.prototype.isScripthashInput = function isScripthashInput() {
-  if (this.code.length < 2)
+  if (this.code.length < 1) // litecoin: change 2 to 1 to support embeded P2SH segwit tx
     return false;
 
   // Grab the raw redeem script.