dae79e5408
generateKey and begin can now optionally take an array of bytes to add to the rng entropy of the device before the operation. If entropy is specified and the device does not support add_rng_entropy or the call fails then that device will not be used, leading to fallback or error depending on the situation. Change-Id: Id7d33e3cc959594dfa5483d002993ba35c1fb134