glib-2.0_2.22.1: Fix configure to test res_query by including resolv.h

glib-2.0_2.22.1: Fix configure to test res_query by including resolv.h

* uclibc does not export res_query as weak like glibc, instead it exports
  __res_query and then in resolv.h it defines res_query as __res_query,
  the check for this fuction in configure checked the availability in every
  way except it did not check if the function is in C library by including
  resolv.h. Without resolv.h the function is reported as undefined.

Signed-off-by: Khem Raj <raj.khem@gmail.com>