Prepend mod with ServicePing::SubmitService
What does this MR do
Prepend mod with ServicePing::SubmitService .
Related MR: !65073 (merged) .
This MR rename class SubmitUsagePingService.
SubmitUsagePingService originally contained the prepend_mod function, and lost prepend_mod after refactoring.
JH needs prepend_mod to extend the ServicePing::SubmitService.
cc EM @prajnamas