Fix a typo and use ArraySet in VCN

This is a cleanup commit to fix typos and switch to use ArraySet
instead of HashSet for better performance.

Bug: 261499808
Test: atest FrameworksVcnTests, CtsVcnTestCases
Change-Id: Ie4a83ab22aa2b3682856776b762b4356b13b4745
1 file changed