Add --without-libssl configure parameter

This replaces --without-ipsec and --without-ipv6sr
and allows other parts of the code to be disabled if
libssl is not available.

Change-Id: Id97ff3685a7924d7f86622952e0405d94ceb5957
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/build-data/platforms/qppc.mk b/build-data/platforms/qppc.mk
index 244747e..983684f 100644
--- a/build-data/platforms/qppc.mk
+++ b/build-data/platforms/qppc.mk
@@ -11,10 +11,10 @@
 	vpp vpp-api-test
 
 vnet_configure_args_qppc = \
-	--without-ipsec --without-ipv6sr
+	--without-libssl
 
 vpp_configure_args_qppc = \
-	--without-ipsec --without-ipv6sr
+	--without-libssl
 
 vlib_configure_args_qppc = --with-pre-data=128