Add OWNERS for CtsIntentTestCases

It does inherit from the parent as while it checks very different
aspects of the platform compared to othe tests within the parent
directory it does make use of code that is common among them for
processing API files so inheriting from the parent will make
refactoring that code easier.

Bug: 280830288
Test: n/a
Change-Id: Ic83fac610f46704a9cd2d250fecb85c3aea761c2
1 file changed