Fix up recent change to mysql password handling; password is not valid until the priv system is turned on, switch around order of operations slightly.
Fix up recent change to mysql password handling; password is not valid
until the priv system is turned on, switch around order of operations
slightly.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome