tf-m-eclair-daily: Set SHARE_FOLDER to /tmp

For some reason, /srv/shared is not accssible to this job on production.
While it would be interesting to challange to understand why, using
shared folder for this job isn't really required, as it is self-contained,
with no downstream jobs. So, just set it to /tmp.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I52cd7991b715293134f9e39a3e33012e1a7f15af
diff --git a/tf-m-eclair-daily.yaml b/tf-m-eclair-daily.yaml
index 8ebba4c..96f2ca5 100644
--- a/tf-m-eclair-daily.yaml
+++ b/tf-m-eclair-daily.yaml
@@ -95,8 +95,8 @@
           default: '5c5792080f0975775bbdddcd9722da446dce550b'
       - string:
           name: SHARE_FOLDER
-          default: '/srv/shared/${JOB_NAME}/${BUILD_NUMBER}'
-          description: 'Folder containing shared repositories for downstream pipeline jobs'
+          default: '/tmp'
+          description: 'Folder for initial cloning of repositories'
       - string:
           name: 'BUILD_TARGET'
           default: ''