Use the IPA server cert profile in the installer.

We were still using the caRAserverCert profile during installation.

https://fedorahosted.org/freeipa/ticket/1744

ipaserver/install/certs.py

@@ -622,7 +622,7 @@ class CertDB(object):
             # We just want the CSR bits, make sure there is nothing else
             csr = pkcs10.strip_header(csr)
 
-            params = {'profileId': 'caRAserverCert',
+            params = {'profileId': 'caIPAserviceCert',
                     'cert_request_type': 'pkcs10',
                     'requestor_name': 'IPA Installer',
                     'cert_request': csr,