wifi: Move legacy hal types to a new namespace (2/2)

Changes in HIDL interface obejcts to use the new namespace for legacy
HAL.

Bug: 32242225
Test: Compiles
Change-Id: I7d0e9cee8656bd779a24d9eaede415317dceaf9b
diff --git a/wifi/1.0/default/wifi.cpp b/wifi/1.0/default/wifi.cpp
index fd2cb9c..3475c46 100644
--- a/wifi/1.0/default/wifi.cpp
+++ b/wifi/1.0/default/wifi.cpp
@@ -33,7 +33,8 @@
 using hidl_return_util::validateAndCall;
 
 Wifi::Wifi()
-    : legacy_hal_(new WifiLegacyHal()), run_state_(RunState::STOPPED) {}
+    : legacy_hal_(new legacy_hal::WifiLegacyHal()),
+      run_state_(RunState::STOPPED) {}
 
 bool Wifi::isValid() {
   // This object is always valid.