Replace apt-mk.mirantis.com by apt.mirantis.com

Change-Id: I2910ff8fae8b488879c12dcafe1f3bfb27b21c57
diff --git a/linux/system/repo/mcp/extra.yml b/linux/system/repo/mcp/extra.yml
index 826969b..9839a23 100644
--- a/linux/system/repo/mcp/extra.yml
+++ b/linux/system/repo/mcp/extra.yml
@@ -6,9 +6,9 @@
     system:
       repo:
         mcp_extra:
-          source: "deb [arch=amd64] http://apt-mk.mirantis.com/${_param:linux_system_codename}/ ${_param:linux_system_repo_mcp_extra_version} extra"
+          source: "deb [arch=amd64] http://apt.mirantis.com/${_param:linux_system_codename}/ ${_param:linux_system_repo_mcp_extra_version} extra"
           architectures: amd64
-          key_url: "http://apt-mk.mirantis.com/public.gpg"
+          key_url: "http://apt.mirantis.com/public.gpg"
           clean_file: true
           pin:
           - pin: 'release a=${_param:linux_system_repo_mcp_extra_version}'