Fix build breakage due to extraneous dereference

Change-Id: If84d8b68a6af1e04a6085351655e588ebef65664
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index dd3f068..70e41e3 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -1758,7 +1758,7 @@
     size_t len;
     const char16_t* str = readString16Inplace(&len);
     if (str) {
-        *pArg->setTo(str, len);
+        pArg->setTo(str, len);
         return 0;
     } else {
         *pArg = String16();