Fix AttestKeyTest failures in KeyMint VTS

Skip attestation key tests if the feature
FEATURE_KEYSTORE_APP_ATTEST_KEY is disabled on device,
as done in KeyMint CTS.

Bug: 244460948
Bug: 265740739

Test: VtsAidlKeyMintTargetTest
(cherry picked from https://android-review.googlesource.com/q/commit:981c9c223671d9012781acf6e9128fd037578833)
Merged-In: I8199e5c7570b10b71f127c7439b889c0b3327865
Change-Id: I8199e5c7570b10b71f127c7439b889c0b3327865
1 file changed