Refresh influxdb priority and repo

   * refresh apt_mirantis/influxdb.yml to common logic
   * fix priority for mcp/extra.yml
     - we need to setup telegraph from it, but not from influxdb 3pp repo

Change-Id: I3c865fa9a29be642a49432030f3789cb617b3e08
Closes-Bug: PROD-21576 (PROD:21576)
diff --git a/linux/system/repo/mcp/extra.yml b/linux/system/repo/mcp/extra.yml
index 9839a23..7711fa0 100644
--- a/linux/system/repo/mcp/extra.yml
+++ b/linux/system/repo/mcp/extra.yml
@@ -12,5 +12,5 @@
           clean_file: true
           pin:
           - pin: 'release a=${_param:linux_system_repo_mcp_extra_version}'
-            priority: 1100
+            priority: 1200
             package: '*'