A new bionic test requires -lresolv on the host.

Bug: http://b/28035006
Change-Id: I2bef1c2965c32d282e64968c3b1d703090de5b01
diff --git a/tests/tests/bionic/Android.mk b/tests/tests/bionic/Android.mk
index 06b7920..8c5e1e0 100644
--- a/tests/tests/bionic/Android.mk
+++ b/tests/tests/bionic/Android.mk
@@ -41,7 +41,7 @@
 LOCAL_MODULE_STEM_64 := $(LOCAL_MODULE)64
 
 LOCAL_LDLIBS += \
-    -lrt -ldl -lutil \
+    -lresolv -lrt -ldl -lutil \
 
 LOCAL_WHOLE_STATIC_LIBRARIES += \
     libBionicTests \