Include challenge in test_rkpd_attestation_key_upgrade

KeyMint.generateKey requires a challenge to be passed when a key
blob is also passed. The test missed this, and was thus failing on
compliant HALs.

Bug: 301223273
Test: keystore2_test
Change-Id: Icf7a32683c85d87fddd7d05ba07a110bb4e38c79
1 file changed