Suppress keystore F2FS related audit

keystore uses sqlite3. sqlite3 calls F2FS_IOC_GET_FEATURES. As
microdroid has nothing to do with that, we just suppress the audit.

Bug: 193118220
Test: atest MicrodroidHostTestCases
Change-Id: I1da00d1fd4b7e208e80a1d9bc5f49c21af684516
1 file changed