tf-a-lts-release-mail: Use actual mailing lists for actual releases

When making a release email for an actual (nor sandbox) release, send it to
the mailing lists dedicated to TF-A/LTS discussion. The email are based on
information provided in
https://linaro.atlassian.net/browse/TFC-545?focusedCommentId=264695

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I09cb9eca1af37733f7783875327c3493e3278b81
diff --git a/tf-a-lts-release-mail.yaml b/tf-a-lts-release-mail.yaml
index fdda38c..ec8b502 100644
--- a/tf-a-lts-release-mail.yaml
+++ b/tf-a-lts-release-mail.yaml
@@ -71,7 +71,7 @@
             echo -n "[SANDBOX] " | cat - subject.txt > subject.txt.tmp
             mv subject.txt.tmp subject.txt
         else
-            echo "paul.sokolovsky@linaro.org, Bipin.Ravi@arm.com, vwadekar@nvidia.com, okash@google.com, jidong@google.com, yann.gautier@st.com" >recipients.txt
+            echo "tfa-lts@lists.trustedfirmware.org, tf-a@lists.trustedfirmware.org, paul.sokolovsky@linaro.org" >recipients.txt
         fi
 
         set +x