Double up the necessary size of /usr/obj to 800MB
Double up the necessary size of /usr/obj to 800MB

PR:		misc/99735
Reported by:	Philip M. Gollucci <pgollucci@p6m7g8.com>,
		Maxim Konovalov <maxim@macomnet.ru>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase