qcom: wlan: Build wpa_supplicant helper library only for qcwcn

Change-Id: I92de8c11e4f7cc369cabf56c60ac2a35d0481d1f
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/qcwcn/Android.mk b/qcwcn/Android.mk
new file mode 100644
index 0000000..a8fc4b3
--- /dev/null
+++ b/qcwcn/Android.mk
@@ -0,0 +1,3 @@
+ifeq ($(BOARD_WLAN_DEVICE),qcwcn)
+    include $(call all-subdir-makefiles)
+endif