Fix compilation with no-ec

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2153)
diff --git a/Configure b/Configure
index 896d4d4..b2e2e47 100755
--- a/Configure
+++ b/Configure
@@ -507,7 +507,8 @@
 
     "stdio"             => [ "apps", "capieng" ],
     "apps"              => [ "tests" ],
-    "comp"		=> [ "zlib" ],
+    "comp"              => [ "zlib" ],
+    "ec"                => [ "tls1_3" ],
     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 
     sub { !$disabled{"msan"} } => [ "asm" ],