Thomas Abraham authored Sep 07, 2018 and Arvind Chauhan committed Oct 12, 2018

Allow for automation using the -j option. With -j=1 as the parameter,
the model is launched as a background process, thus allowing the
calling test case scripts to continue execution and check for
completion of the test case. With -j=0, the model is launched as a
foreground process.

Change-Id: Icfc4df685cf23ed59532054e2d6cf162b4e2938c
Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>