OWNERS: adjust maintainers

The maintainer has been unresponsive on this repository since
at least June 16th, 2022.  Adriana and I have done the majority
of the contributions and reviews in the last 2 years.  Vishwa
has stopped working on the project.

Changes:
  - Add Adriana as 'owner'.
  - Add Patrick as 'owner'.
  - Remove Vishwa as 'reviewer'.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I39a25bbfbd25d9fee98c5747961899fb0f395a17
1 file changed