Allow native process to set procinfo in ResourceManager

And set the override in transcoding service to allow
ResourceManager to reclaim from it.

bug: 168307955
test: mediatranscodingservice unit tests;
ResourceManager unit tests;
CTS ResourceManagerTest; manually verify that binderDied
events are handled correctly.

Change-Id: I3193a0e29c1efbaf641e8c6b391241233d9cc404