cmake: add zlib and cares dep
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a607864..1248f09 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1487,6 +1487,8 @@
 target_link_libraries(grpc_cronet
   ${_gRPC_BASELIB_LIBRARIES}
   ${_gRPC_SSL_LIBRARIES}
+  ${_gRPC_ZLIB_LIBRARIES}
+  ${_gRPC_CARES_LIBRARIES}
   ${_gRPC_ALLTARGETS_LIBRARIES}
   gpr
 )
@@ -2075,6 +2077,8 @@
 
 target_link_libraries(grpc_unsecure
   ${_gRPC_BASELIB_LIBRARIES}
+  ${_gRPC_ZLIB_LIBRARIES}
+  ${_gRPC_CARES_LIBRARIES}
   ${_gRPC_ALLTARGETS_LIBRARIES}
   gpr
 )