Update test-ca2.crt[.der] and server5.crt[.der]

Update these files to match the data in `library/certs.c`.

Signed-off-by: Pengyu Lv <pengyu.lv@arm.com>
diff --git a/tests/data_files/server5.crt b/tests/data_files/server5.crt
index 2eab999..a95bbf4 100644
--- a/tests/data_files/server5.crt
+++ b/tests/data_files/server5.crt
@@ -1,14 +1,14 @@
 -----BEGIN CERTIFICATE-----
-MIICIDCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
+MIICHzCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
 A1UECgwIUG9sYXJTU0wxHDAaBgNVBAMME1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
-MjMwNTE3MDcxMDM2WhcNMzMwNTE0MDcxMDM2WjA0MQswCQYDVQQGEwJOTDERMA8G
+MjMwNjE1MDMzNDE4WhcNMzMwNjEyMDMzNDE4WjA0MQswCQYDVQQGEwJOTDERMA8G
 A1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG
 CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA
 2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd
 BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB
 PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKDAhQb2xh
 clNTTDEcMBoGA1UEAwwTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG
-CCqGSM49BAMCA2kAMGYCMQDg6p7PPfr2+n7nGvya3pU4ust3k7Obk4/tZX+uHHRQ
-qaccsyULeFNzkyRvWHFeT5sCMQCzDJX79Ii7hILYza/iXWJe/BjJEE8MteCRGXDN
-06jC+BLgOH1KQV9ArqEh3AhOhEg=
+CCqGSM49BAMCA2gAMGUCMAHFbGEzx8dZaUlIltT5s1QO9FvKmvFer4uRY3ntEy9S
+k7DCCozM86WWLjfzbJ78bwIxAJYRPF1CzNEiXPHb9O46ZPHKo2S5x//g/54RowAK
+uZz+hKPuMi6YY6cIm81jfeaSZQ==
 -----END CERTIFICATE-----