resolver: add a dependencies for DNS resolver feature
resolver: add a dependencies for DNS resolver feature

DNS resolver needs at least IPV4 or IPV6 support enabled
to be correctly built. Add such dependency.

Signed-off-by: Carmelo Amoroso <532378793705a04edd56deb76ad8c0442834d55d@st.com>

skristiansson/uClibc-or1k,mephi42/uClibc,atgreen/uClibc-moxie,foss-xtensa/uClibc,waweber/uclibc-clang,czankel/xtensa-uclibc,atgreen/uClibc-moxie,kraj/uclibc-ng,ndmsystems/uClibc,ffainelli/uClibc,ndmsystems/uClibc,ndmsystems/uClibc,majek/uclibc-vx32,majek/uclibc-vx32,hwoarang/uClibc,skristiansson/uClibc-or1k,mephi42/uClibc,kraj/uclibc-ng,hjl-tools/uClibc,hjl-tools/uClibc,atgreen/uClibc-moxie,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,hwoarang/uClibc,ffainelli/uClibc,foss-xtensa/uClibc,wbx-github/uclibc-ng,brgl/uclibc-ng,wbx-github/uclibc-ng,groundwater/uClibc,mephi42/uClibc,wbx-github/uclibc-ng,kraj/uClibc,wbx-github/uclibc-ng,ddcc/klee-uclibc-0.9.33.2,ffainelli/uClibc,groundwater/uClibc,ffainelli/uClibc,kraj/uClibc,waweber/uclibc-clang,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,brgl/uclibc-ng,kraj/uClibc,ddcc/klee-uclibc-0.9.33.2,waweber/uclibc-clang,ddcc/klee-uclibc-0.9.33.2,waweber/uclibc-clang,ddcc/klee-uclibc-0.9.33.2,hwoarang/uClibc,mephi42/uClibc,atgreen/uClibc-moxie,ndmsystems/uClibc,czankel/xtensa-uclibc,brgl/uclibc-ng,czankel/xtensa-uclibc,foss-for-synopsys-dwc-arc-processors/uClibc,foss-xtensa/uClibc,groundwater/uClibc,hwoarang/uClibc,czankel/xtensa-uclibc,skristiansson/uClibc-or1k,foss-xtensa/uClibc,skristiansson/uClibc-or1k,groundwater/uClibc,groundwater/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,hjl-tools/uClibc,majek/uclibc-vx32,brgl/uclibc-ng,ffainelli/uClibc,hjl-tools/uClibc,kraj/uClibc,hjl-tools/uClibc,majek/uclibc-vx32