sim: Fix uninitialized cluster wide cc counter

The Cycle counter was reset using an synchronous nRST.
If using clock gating but an global reset signal, the reset was not triggered.

This fixes the traceing scripts on the dasm logs.

Author: Smephite

hw/ip/spatz_cc/src/spatz_cc.sv

@@ -478,7 +478,7 @@ module spatz_cc
   // pragma translate_off
   int           f;
   string        fn;
-  logic  [63:0] cycle;
+  logic  [63:0] cycle = '0;
 
   initial begin
     // We need to schedule the assignment into a safe region, otherwise