Add a dependency on openssl.

Nova and Keystone use openssl to setup certificates.  If it's not
there then Keystone fails with "Error 2: No such file or directory",
Nova fails with "openssl: command not found" and glance fails with
"glance: error: argument --os-auth-token: expected one argument"
Basically, cascading errors everywhere.  So I put the dependency
in "general" since it affects multiple packages.

Fixes bug 1152315

Change-Id: I803f91644443d7aba78c0a90384e32f6eece36ec
diff --git a/files/rpms/general b/files/rpms/general
index e4f143d..fc3412b 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -3,6 +3,7 @@
 euca2ools # only for testing client
 git-core
 openssh-server
+openssl
 psmisc
 pylint
 python-netaddr