tf-m-build-and-test: Disable Tux submission for now

While we're seeing issues with UBL license server.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I83e6dab0923d07660260252c0d65b963fc166d8d
diff --git a/tf-m-build-and-test.yaml b/tf-m-build-and-test.yaml
index 8183923..a1d7535 100644
--- a/tf-m-build-and-test.yaml
+++ b/tf-m-build-and-test.yaml
@@ -148,7 +148,7 @@
             Parameter to lava_create_jobs.py to filter by device type (e.g. --fvp-only or --physical-board-only)
       - string:
           name: USE_TUXSUITE_FVP
-          default: 1
+          default: 0
           description: |
             Whether to submit FVP tests via TuxSuite (instead of LAVA)
     wrappers: