Fix symbol map being loaded too early during title changes

We should only try to load a symbol map for the new title *after* it
has been loaded into memory, not before. Likewise for applying HLE
patches and loading new custom textures.

In practice, loading/repatching too early was only a problem for
titles that are launched via ES_Launch. This commit fixes that.

Source/Core/Core/IOS/IOS.cpp

@@ -856,6 +856,7 @@ IOSC& Kernel::GetIOSC()
 static void FinishPPCBootstrap(u64 userdata, s64 cycles_late)
 {
   ReleasePPC();
+  SConfig::OnNewTitleLoad();
   INFO_LOG_FMT(IOS, "Bootstrapping done.");
 }