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/CachedInterpreter/CachedInterpreter.cpp

@@ -101,7 +101,7 @@ void CachedInterpreter::ExecuteOneBlock()
       break;
 
     default:
-      ERROR_LOG(POWERPC, "Unknown CachedInterpreter Instruction: %d", static_cast<int>(code->type));
+      ERROR_LOG_FMT(POWERPC, "Unknown CachedInterpreter Instruction: {}", code->type);
       break;
     }
   }
@@ -220,7 +220,7 @@ void CachedInterpreter::Jit(u32 address)
     NPC = nextPC;
     PowerPC::ppcState.Exceptions |= EXCEPTION_ISI;
     PowerPC::CheckExceptions();
-    WARN_LOG(POWERPC, "ISI exception at 0x%08x", nextPC);
+    WARN_LOG_FMT(POWERPC, "ISI exception at {:#010x}", nextPC);
     return;
   }