sim: Use a range based for loop in EmbeddedPython::initAll.

Change-Id: I380bed880735a411c6069079b4ae38a9d9080744
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/48366
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>

src/sim/init.cc

@@ -143,12 +143,10 @@ EmbeddedPython::initAll()
 
     // Load the rest of the embedded python files into the embedded
     // python importer
-    std::list<EmbeddedPython *>::iterator i = getList().begin();
-    std::list<EmbeddedPython *>::iterator end = getList().end();
-    for (; i != end; ++i)
-        if (!(*i)->addModule())
+    for (auto *embedded: getList()) {
+        if (!embedded->addModule())
             return 1;
-
+    }
     return 0;
 }