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_sta_iface.h b/wifi/1.0/default/wifi_sta_iface.h
index a13feeb..09a883c 100644
--- a/wifi/1.0/default/wifi_sta_iface.h
+++ b/wifi/1.0/default/wifi_sta_iface.h
@@ -35,7 +35,7 @@
 class WifiStaIface : public IWifiStaIface {
  public:
   WifiStaIface(const std::string& ifname,
-               const std::weak_ptr<WifiLegacyHal> legacy_hal);
+               const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
   // Refer to |WifiChip::invalidate()|.
   void invalidate();
   bool isValid();
@@ -107,7 +107,7 @@
   getDebugRxPacketFatesInternal();
 
   std::string ifname_;
-  std::weak_ptr<WifiLegacyHal> legacy_hal_;
+  std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
   std::vector<sp<IWifiStaIfaceEventCallback>> event_callbacks_;
   bool is_valid_;