Link libwifi-system-iface instead

This commit replaces libwifi-system with libwifi-system-iface because
libwifi-system is a framework-only library.

Bug: 37429084
Test: Sailfish builds, boots, and wifi works.
Change-Id: I2b7c68d60ee84d3dba7500d01323365a699e4ad4
diff --git a/wifi/1.0/default/Android.mk b/wifi/1.0/default/Android.mk
index 13f6cc1..7603b8b 100644
--- a/wifi/1.0/default/Android.mk
+++ b/wifi/1.0/default/Android.mk
@@ -46,7 +46,7 @@
     libnl \
     libutils \
     libwifi-hal \
-    libwifi-system \
+    libwifi-system-iface \
     libcld80211
 LOCAL_INIT_RC := android.hardware.wifi@1.0-service.rc
 include $(BUILD_EXECUTABLE)