Add myself and David to Keystore CTS owners

Update the Keystore CTS owners file:
* Add David
* Add myself.

This will remove the dependency on US-based reviewers for all Keystore
CTS CLs.
Non-trivial CLs, CLs that are not strictly in the Java layer, or both,
would still be sent to the right US-based reviewer.

Bug: N/A
Test: N/A
Change-Id: I7cd3c91f072ffe88bf9ee7f72eda3b2b7ee8397a
1 file changed