Replace GetString with Get function

This should hopefully fix compilation errors.

src/yuzu_cmd/config.cpp

@@ -298,8 +298,8 @@ void Config::ReadValues() {
         sdl2_config->GetInteger("ControlsGeneral", "touch_diameter_x", 15);
     Settings::values.touchscreen.diameter_y =
         sdl2_config->GetInteger("ControlsGeneral", "touch_diameter_y", 15);
-    Settings::values.udp_input_address = sdl2_config->GetString(
-        "Controls", "udp_input_address", InputCommon::CemuhookUDP::DEFAULT_ADDR);
+    Settings::values.udp_input_address =
+        sdl2_config->Get("Controls", "udp_input_address", InputCommon::CemuhookUDP::DEFAULT_ADDR);
     Settings::values.udp_input_port = static_cast<u16>(sdl2_config->GetInteger(
         "Controls", "udp_input_port", InputCommon::CemuhookUDP::DEFAULT_PORT));