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_chip.cpp b/wifi/1.0/default/wifi_chip.cpp
index 2245288..4d1bce5 100644
--- a/wifi/1.0/default/wifi_chip.cpp
+++ b/wifi/1.0/default/wifi_chip.cpp
@@ -42,7 +42,7 @@
 using hidl_return_util::validateAndCall;
 
 WifiChip::WifiChip(ChipId chip_id,
-                   const std::weak_ptr<WifiLegacyHal> legacy_hal)
+                   const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
     : chip_id_(chip_id), legacy_hal_(legacy_hal), is_valid_(true) {}
 
 void WifiChip::invalidate() {