BTEmu: Rename AccessWiiMote to AccessWiimote

Everywhere else throughout the codebase we use "Wiimote" when referring
to the Wii Remote as a shorthand. This makes the casing consistent.

Source/Core/DolphinQt2/MainWindow.cpp

@@ -1401,7 +1401,7 @@ void MainWindow::OnConnectWiiRemote(int id)
   Core::RunAsCPUThread([&] {
     const auto bt = std::static_pointer_cast<IOS::HLE::Device::BluetoothEmu>(
         ios->GetDeviceByName("/dev/usb/oh1/57e/305"));
-    const bool is_connected = bt && bt->AccessWiiMoteByIndex(id)->IsConnected();
+    const bool is_connected = bt && bt->AccessWiimoteByIndex(id)->IsConnected();
     Wiimote::Connect(id, !is_connected);
   });
 }

Source/Core/DolphinQt2/MenuBar.cpp

@@ -923,7 +923,7 @@ void MenuBar::UpdateToolsMenu(bool emulation_started)
 
     wii_remote->setEnabled(enable_wiimotes);
     if (enable_wiimotes)
-      wii_remote->setChecked(bt->AccessWiiMoteByIndex(i)->IsConnected());
+      wii_remote->setChecked(bt->AccessWiimoteByIndex(i)->IsConnected());
   }
 }