Add Wifi HAL to get factory MAC address

Add getFactoryMacAddress method to retrieve the factory MAC of Sta
interface.

Bug: 111634904
Test: Manual Verification
Test: run vts with command "mma -j64 && adb sync data && adb shell data/nativetest64/VtsHalWifiV1_3TargetTest/VtsHalWifiV1_3TargetTest"
Change-Id: I82b47366d3576201ef54a4e89a3f864c31fff42c
diff --git a/wifi/1.3/vts/functional/VtsHalWifiV1_3TargetTest.cpp b/wifi/1.3/vts/functional/VtsHalWifiV1_3TargetTest.cpp
index b410a48..faf426e 100644
--- a/wifi/1.3/vts/functional/VtsHalWifiV1_3TargetTest.cpp
+++ b/wifi/1.3/vts/functional/VtsHalWifiV1_3TargetTest.cpp
@@ -19,6 +19,8 @@
 
 #include "wifi_hidl_test_utils.h"
 
+using ::android::hardware::wifi::V1_3::IWifi;
+
 // Test environment for Wifi HIDL HAL.
 class WifiHidlEnvironment_1_3 : public WifiHidlEnvironment {
    public: