Action object to erase NVRAM of the agent.
The following values can only be read:
normal(1)
error(2)... operation failed or bad flash
erasing(4)...agent is erasing NVRAM flash
The following value can be written:
erase(3).....do erase
The agent will return a response even before the erase is done.
And the read value will be erasing until erase is done.
And the erase request will be rejected until error or normal.