running frappy with 'seadesc' cfg does the same as previously starting 'sea' cfg and performing seaconn:_describe automatically create mbe.cfg
Change-Id: Icb1ea5e2e1f9aedd77a6bac7ed6b14458aea4aa7
Change-Id: Iedfb2bf7f28bfe45201adacec0645cc13abffe59