Add miratis repo key,for old releases

Related-bug PROD-24188 (PROD:24188)

Change-Id: I6ac44fb7f9d16e69a99e8f474cb96780750d8574
diff --git a/linux/system/repo/keystorage/mirantis_com/mirror_mirantis.yml b/linux/system/repo/keystorage/mirantis_com/mirror_mirantis.yml
index 9b08546..d0c9368 100644
--- a/linux/system/repo/keystorage/mirantis_com/mirror_mirantis.yml
+++ b/linux/system/repo/keystorage/mirantis_com/mirror_mirantis.yml
@@ -1,11 +1,42 @@
 parameters:
   _param:
-    # pub   2048R/4C5289EF 2018-07-25
+    # pub   2048R/1FA22B08 2015-07-21
+    # pub   2048R/4C5289EF 2018-07-25 - pike +
     # https://mirror.mirantis.com
     linux_system_repo_mirror_mirantis_key: |-
         -----BEGIN PGP PUBLIC KEY BLOCK-----
         Version: GnuPG v1
 
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+        -----END PGP PUBLIC KEY BLOCK-----
+        -----BEGIN PGP PUBLIC KEY BLOCK-----
+        Version: GnuPG v1
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