fix -fPIC flag in portals/utils/Makefile.am confused automake. Still not
really understand the reason, looks like automake have a bug when handle
this case. Now the workaround is assign different name of the ptlctl
library for build for kernel/liblustre.
build_obj_list ../lvfs liblvfs.a
# portals components libs
-build_obj_list ../portals/utils libptlctl.a
+build_obj_list ../portals/utils libuptlctl.a
build_obj_list ../portals/unals libtcpnal.a
build_obj_list ../portals/portals libportals.a