Compile fix for -DDEBUG_CURLIO

Since that fakes the libcwd macros, this is needed to compile
the recent change that allows to only turn on debugging output
for certain statemachine objects when DEBUG_CURLIO is defined,
but libcwd is not used (CWDEBUG is undefined).

indra/aistatemachine/aitimer.h

@@ -77,7 +77,7 @@ class AITimer : public AIStateMachine {
 
   public:
 	AITimer(CWD_ONLY(bool debug = false)) :
-#ifdef CWDEBUG
+#if defined(CWDEBUG) || defined(DEBUG_CURLIO)
 		AIStateMachine(debug),
 #endif
 		mInterval(0) { DoutEntering(dc::statemachine(mSMDebug), "AITimer(void) [" << (void*)this << "]"); }