Fix neteq-rtpplay Linux build errors.

BUG=
TEST=build on Linux.
TBR=tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/457007

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1948 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/audio_coding/neteq/test/NETEQTEST_RTPpacket.cc

@@ -11,6 +11,7 @@
 #include "NETEQTEST_RTPpacket.h"
 
 #include <assert.h>
+#include <stdlib.h>  // rand
 #include <string.h>
 
 #ifdef WIN32
@@ -842,6 +843,6 @@ void NETEQTEST_RTPpacket::scramblePayload(void)
 
     for (int i = 0; i < _payloadLen; ++i)
     {
-        _payloadPtr[i] = static_cast<WebRtc_UWord8>(std::rand());
+        _payloadPtr[i] = static_cast<WebRtc_UWord8>(rand());
     }
 }