seed from +ntb_random_seed or +seed rather than falling back straightaway to current time
seed from +ntb_random_seed or +seed rather than falling back straightaway to current time

stuarthodgson/cocotb,mkreider/cocotb2,stuarthodgson/cocotb,mkreider/cocotb2,mkreider/cocotb2,stuarthodgson/cocotb