Add simulated merge-queue job

Add the branch of PR-906 (dev/dgreen-arm/ci-testing-development) as a
branch job as well to mbed-tls-restricted-pr-ci-testing, to simulate a
merge queue job.

Also remove the main mbedtls repo as a source repo from the same job,
which was used during the bringup of the merge queue jobs.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: I94e92f488977b7617860c8ed2a464cf6ed3b9f1b
1 file changed