Make servicemanager and diced bootstrap processes

The two are now started before APEXes are activated. Therefore they need
access to the bootstrap bionic libraries.

file_contexts is also updated because their file names are changed to
avoid the conflict with their non-bootstrap variants.

Bug: 214231981
Test: m
Change-Id: I30fb1422f228b71251d6618dd7f6e4e5422717f8
3 files changed