Replace deprecated AC_PROG_LIBTOOL with LT_INIT
Replace deprecated AC_PROG_LIBTOOL with LT_INIT

Signed-off-by: Patrick Uiterwijk <bd6d5394796bee9cca2245486eb583fd64b70226@redhat.com>

scslab/tcpcrypt,scslab/tcpcrypt,scslab/tcpcrypt