Add gServiceSidMap.

Like gServicePrioMap. b/122472540 is filed to merge these maps
in the future, but creating a separate map so that it can be easily

Bug: 121035042
Test: boot and check for SID values for calls into hwservicemanager
    coming from clients which called IServiceManager::getService.

Change-Id: I4e5821d91ea694f86911218c23e68fcb987daaf9
Merged-In: I4e5821d91ea694f86911218c23e68fcb987daaf9
(cherry picked from commit d7f8d2226f5c7e98d12137732846e4ba55048927)
5 files changed