Gilles Peskine a14326f054 Make add_entropy optional
A random generation driver does not need to support entropy injection.
This will limit it to platforms where the RNG peripheral is the sole
entropy source and without an RNG seed saved into persistent storage.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:27 +01:00
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2020-12-07 18:47:27 +01:00