util: netdevip: Fix a memleak in virNetDevIPRouteAdd
util: netdevip: Fix a memleak in virNetDevIPRouteAdd

@resp is allocated by virNetlinkCommand and the caller is responsible
for freeing the buffer. Since we already converted this module to use
VIR_AUTO{FREE,PTR} macros, let's resolve the problem by using them.

Signed-off-by: Shi Lei <79e2d1a953a210f9f0c36cafbe946414d6421d20@massclouds.com>
Reviewed-by: Erik Skultety <2c14d38fa47c8799f1b9c16280abe27f8edfec6e@redhat.com>

nertpinx/libvirt,crobinso/libvirt,fabianfreyer/libvirt,libvirt/libvirt,andreabolognani/libvirt,libvirt/libvirt,crobinso/libvirt,olafhering/libvirt,nertpinx/libvirt,andreabolognani/libvirt,eskultety/libvirt,olafhering/libvirt,andreabolognani/libvirt,eskultety/libvirt,nertpinx/libvirt,crobinso/libvirt,jardasgit/libvirt,olafhering/libvirt,fabianfreyer/libvirt,zippy2/libvirt,fabianfreyer/libvirt,zippy2/libvirt,jfehlig/libvirt,nertpinx/libvirt,jfehlig/libvirt,libvirt/libvirt,nertpinx/libvirt,eskultety/libvirt,libvirt/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,andreabolognani/libvirt,eskultety/libvirt,jardasgit/libvirt,jfehlig/libvirt,olafhering/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,jfehlig/libvirt,zippy2/libvirt,crobinso/libvirt,zippy2/libvirt,jardasgit/libvirt,eskultety/libvirt