Tests: updated ssl_engine_keys.t test.

After merge with libp11, pkcs11 engine shared object was renamed
from "engine_pkcs11.so" to "pkcs11.so".  Changed configuration
accordingly.

Additionally, changed "init" to "1" in the engine configuration.  This
keeps pkcs11 engine loaded and prevents segmentation faults observed
during nginx shutdown.

While here, restored correct order of ssl_certificate and ssl_certificate_key.

ssl_engine_keys.t

diff --git a/ssl_engine_keys.t b/ssl_engine_keys.t
index 32b58cb..9bc689f 100644
--- a/ssl_engine_keys.t
+++ b/ssl_engine_keys.t
@@ -47,8 +47,8 @@
         listen       127.0.0.1:8080;
         server_name  localhost;
 
-        ssl_certificate_key engine:pkcs11:slot_0-id_00;
         ssl_certificate localhost.crt;
+        ssl_certificate_key engine:pkcs11:slot_0-id_00;
 
         location / {
             # index index.html by default
@@ -81,9 +81,9 @@
 
 [pkcs11_section]
 engine_id = pkcs11
-dynamic_path = /usr/local/lib/engines/engine_pkcs11.so
+dynamic_path = /usr/local/lib/engines/pkcs11.so
 MODULE_PATH = /usr/local/lib/softhsm/libsofthsm.so
-init = 0
+init = 1
 PIN = 1234
 
 [ req ]