Android: Fix compilation without BOARD_WPA_SUPPLICANT_DRIVER

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

wpa_supplicant/Android.mk

@@ -8,14 +8,12 @@
 LOCAL_PATH := $(call my-dir)
 PKG_CONFIG ?= pkg-config
 
-WPA_BUILD_SUPPLICANT := false
 ifneq ($(BOARD_WPA_SUPPLICANT_DRIVER),)
-  WPA_BUILD_SUPPLICANT := true
   CONFIG_DRIVER_$(BOARD_WPA_SUPPLICANT_DRIVER) := y
+else
+  CONFIG_DRIVER_TEST := y
 endif
 
-ifeq ($(WPA_BUILD_SUPPLICANT),true)
-
 include $(LOCAL_PATH)/android.config
 
 # To ignore possible wrong network configurations
@@ -1585,8 +1583,6 @@ include $(BUILD_EXECUTABLE)
 #
 ########################
 
-endif # ifeq ($(WPA_BUILD_SUPPLICANT),true)
-
 include $(CLEAR_VARS)
 LOCAL_MODULE = libwpa_client
 LOCAL_CFLAGS = $(L_CFLAGS)