[DPP] Fix incorrect error reported when DPP AKM conf is received

In case a DPP AKM configuration is received in enrollee mode,
HidlManager::notifyDppConfigReceived will call notifyDppFailure with
NOT_SUPPOERED instead of CONFIGURATION error.

Bug: 123588343
Test: act.py -c ../WifiDppConfig.json -tc WifiDppTest
Change-Id: I92cfc604e584eec96d09408150b3aeb4a1963963
diff --git a/wpa_supplicant/hidl/1.2/hidl_manager.cpp b/wpa_supplicant/hidl/1.2/hidl_manager.cpp
index c6fe92f..8297c03 100644
--- a/wpa_supplicant/hidl/1.2/hidl_manager.cpp
+++ b/wpa_supplicant/hidl/1.2/hidl_manager.cpp
@@ -1507,7 +1507,7 @@
 		/* Unsupported AKM */
 		wpa_printf(MSG_ERROR, "DPP: Error: Unsupported AKM 0x%X",
 				config->key_mgmt);
-		notifyDppFailure(wpa_s, DppFailureCode::CONFIGURATION);
+		notifyDppFailure(wpa_s, DppFailureCode::NOT_SUPPORTED);
 		return;
 	}