Move JDWP to std::vector<iovec> to remove runtime/arrays warning

Change-Id: I8494a25a65de4ebac2b1f4f41c0f5eedf117b7ac
diff --git a/runtime/debugger.cc b/runtime/debugger.cc
index 9e9dd87..deed540 100644
--- a/runtime/debugger.cc
+++ b/runtime/debugger.cc
@@ -3071,7 +3071,7 @@
   DdmSendChunk(type, bytes.size(), &bytes[0]);
 }
 
-void Dbg::DdmSendChunkV(uint32_t type, const struct iovec* iov, int iov_count) {
+void Dbg::DdmSendChunkV(uint32_t type, const iovec* iov, int iov_count) {
   if (gJdwpState == NULL) {
     VLOG(jdwp) << "Debugger thread not active, ignoring DDM send: " << type;
   } else {