cpu: move initCPU calls from initState to init

This commit moves the initCPU calls from initState to init
of base cpu (which were added in commit 0b8d02dec4).
This is a temporary fix to solve the problem of X86System
initState getting called before initState of base cpu.

Jira Issue: https://gem5.atlassian.net/browse/GEM5-292

Change-Id: I7434cd811536175562cfa2646f4326907fadad8c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24884
Reviewed-by: Gabe Black <gabeblack@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/cpu/base.cc

@@ -318,11 +318,8 @@ BaseCPU::init()
 
         verifyMemoryMode();
     }
-}
 
-void
-BaseCPU::initState()
-{
+    //These calls eventually need to be moved to initState
     if (FullSystem && !params()->switched_out) {
         for (auto *tc: threadContexts)
             TheISA::initCPU(tc, tc->contextId());

src/cpu/base.hh

@@ -314,7 +314,6 @@ class BaseCPU : public ClockedObject
     virtual ~BaseCPU();
 
     void init() override;
-    void initState() override;
     void startup() override;
     void regStats() override;