Treblize nfc config file location

Treblization requires to locate partner-specific configs in its own
partition. So the nfc config file could be located in /odm/etc or
/vendor/etc.
This CL is to support those locations for the config.

Test: building succeeded and tested on sailfish.
Bug: 35369237
Change-Id: I22840654044e142433a1d828cb8e382c48cd699f
3 files changed