Core: Convert logging over to fmt pt.5

Converts the remaining PowerPC code over to fmt-capable logging.

Now, all that's left to convert over are the lingering remnants within
the frontend code.

Source/Core/Core/PowerPC/JitInterface.cpp

@@ -69,9 +69,9 @@ CPUCoreBase* InitJitCore(PowerPC::CPUCore core)
     break;
 
   default:
-    PanicAlertT("The selected CPU emulation core (%d) is not available. "
-                "Please select a different CPU emulation core in the settings.",
-                static_cast<int>(core));
+    PanicAlertFmtT("The selected CPU emulation core ({0}) is not available. "
+                   "Please select a different CPU emulation core in the settings.",
+                   core);
     g_jit = nullptr;
     return nullptr;
   }
@@ -100,7 +100,7 @@ void WriteProfileResults(const std::string& filename)
   File::IOFile f(filename, "w");
   if (!f)
   {
-    PanicAlert("Failed to open %s", filename.c_str());
+    PanicAlertFmt("Failed to open {}", filename);
     return;
   }
   fprintf(f.GetHandle(), "origAddr\tblkName\trunCount\tcost\ttimeCost\tpercent\ttimePercent\tOvAlli"