fastmodel: Call the base class initFromIrisInstance in the R52.

In the CortexR52 model in the initFromIrisInstance method, call into
the base classes version of that function to ensure some basic, common
setup is performed.

Change-Id: I43198578ce1057d63d8e72d66b5370bf4d1ccd4d
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/43545
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/arch/arm/fastmodel/CortexR52/thread_context.cc

@@ -82,6 +82,8 @@ CortexR52TC::translateAddress(Addr &paddr, Addr vaddr)
 void
 CortexR52TC::initFromIrisInstance(const ResourceMap &resources)
 {
+    ThreadContext::initFromIrisInstance(resources);
+
     pcRscId = extractResourceId(resources, "R15");
 
     extractResourceMap(intReg32Ids, resources, intReg32IdxNameMap);