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
1 file changed