Revert "Revert "Keystore 2.0: Add CREATE_DATETIME unconditionally.""

This reverts commit 5b8f198fb7307d2551437f1b84876595df1eb396.

Reason for revert: Relevant vendor implementations have been fixed.

Test: CtsKeystoreTestCases ran successfully against relevant devices.
Bug: 204578637
Change-Id: I2cadd017b66f8930fd0eb26ff8f58d52cac15fd4
1 file changed