Unbind Attestation keys when freeing up namespace.

In https://android-review.googlesource.com/c/platform/system/security/+/1698833
we added a check only for client keys. However, this means that on application
deletion only the keystore keys related to the application are unbound and the
attestation keys get orphaned.

Through this change, I am planning to unbind the attestation keys related to
the application as well.

Change-Id: I1c9d1ac6d6943cc53f5d74653e3da72cd4f2adf7
Test: atest keystore2_test
BUG: 232534682
1 file changed