[dv/kmac] move entropy_timer test to V3
[dv/kmac] move entropy_timer test to V3

From a discussion with Eunchan, it is decided to punt verification of
the timer features to V3, pending some security/SW discussions.

Signed-off-by: Udi Jonnalagadda <790cd677b6a22a419ffcfe0eb4293d8866eb70c9@google.com>

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