fixed sql-statement for creating user
fixed sql-statement for creating user

fixed error with creating db-user from $DBNAME to $DBUSER_MISP
SteveClement/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP,FIRSTdotorg/MISP,MISP/MISP,FIRSTdotorg/MISP,SteveClement/MISP,SteveClement/MISP,FIRSTdotorg/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,FIRSTdotorg/MISP