wifi(implementation): Return proper status code on initialize

The fallback HAL will return |WIFI_ERROR_NOT_SUPPORTED| when
|init_wifi_vendor_hal_func_table| is invoked.  This should be sent as is
to the HIDL interface instead of sending |WIFI_ERROR_UNKNOWN|.

Bug: 34859006
Test: Compiles
Change-Id: I5fd132368715bd158e617ad3cf2e6f88d147cef7
diff --git a/wifi/1.0/default/wifi_legacy_hal.cpp b/wifi/1.0/default/wifi_legacy_hal.cpp
index 5fc0228..ba57ba7 100644
--- a/wifi/1.0/default/wifi_legacy_hal.cpp
+++ b/wifi/1.0/default/wifi_legacy_hal.cpp
@@ -328,9 +328,8 @@
   wifi_error status = init_wifi_vendor_hal_func_table(&global_func_table_);
   if (status != WIFI_SUCCESS) {
     LOG(ERROR) << "Failed to initialize legacy hal function table";
-    return WIFI_ERROR_UNKNOWN;
   }
-  return WIFI_SUCCESS;
+  return status;
 }
 
 wifi_error WifiLegacyHal::start() {