Wifi Test Case Updates.

Initial commit for Rtt test cases.
Initial commit for EAP certs and key files.
Add appropriate API support in sl4a.
Add Rtt test cases based on the test plan.
Update macros and params based on CL210083.
Update wifi enterprise tests and test config.
Minor updates to wifi manager tests.

Change-Id: Ia684c066e19ae9a01f5bca6cc1b2084775a0ac48
3 files changed