misc: Remove sim/cur_tick dependency from sim/core.hh

Remove this unnecessary dependency. Fixed all incorrect
includes of sim/core.hh.

Change-Id: I3ae282dbaeb45fbf4630237a3ab9b1a593ffbe0c
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/43592
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/cpu/inst_pb_trace.cc

@@ -46,6 +46,7 @@
 #include "params/InstPBTrace.hh"
 #include "proto/inst.pb.h"
 #include "sim/core.hh"
+#include "sim/cur_tick.hh"
 
 namespace gem5
 {

src/cpu/o3/cpu.cc

@@ -55,7 +55,7 @@
 #include "debug/O3CPU.hh"
 #include "debug/Quiesce.hh"
 #include "enums/MemoryMode.hh"
-#include "sim/core.hh"
+#include "sim/cur_tick.hh"
 #include "sim/full_system.hh"
 #include "sim/process.hh"
 #include "sim/stat_control.hh"

src/cpu/pc_event.cc

@@ -35,7 +35,7 @@
 #include "base/debug.hh"
 #include "base/trace.hh"
 #include "debug/PCEvent.hh"
-#include "sim/core.hh"
+#include "sim/cur_tick.hh"
 #include "sim/system.hh"
 
 namespace gem5

src/cpu/testers/traffic_gen/trace_gen.cc

@@ -43,6 +43,8 @@
 #include "base/trace.hh"
 #include "debug/TrafficGen.hh"
 #include "proto/packet.pb.h"
+#include "sim/core.hh"
+#include "sim/cur_tick.hh"
 
 namespace gem5
 {