Disable default to auto install to Arduino device after build.

Disable default to auto install to Arduino device after build.

By defaulting auto-upload to false, this will allow developers to build
for the Arduino platform and remove any need to actually have an Arduino
device plugged in to their machine to see a successful build output from
Scons.

Change-Id: I804bb8cc03f38bf4d79206905bcf4bdf23ee7bb9
Signed-off-by: Joseph Morrow <joseph.l.morrow@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/530
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Erich Keane <erich.keane@intel.com>