fabric-tna: increase timeout and reduce retention for PR builds

Change-Id: I0fa9cb296bf2df0a1efe8ff8561901a9df270a7a
diff --git a/jjb/templates/fabric-tna-jobs.yaml b/jjb/templates/fabric-tna-jobs.yaml
index f9b82cc..a11be61 100644
--- a/jjb/templates/fabric-tna-jobs.yaml
+++ b/jjb/templates/fabric-tna-jobs.yaml
@@ -13,7 +13,7 @@
       # Barefoot toolchain (under NDA).
       - onf-infra-onfstaff-private:
       - onf-infra-properties:
-          build-days-to-keep: '{build-days-to-keep}'
+          build-days-to-keep: '15'
           artifact-num-to-keep: '-1'
       - github:
           url: 'https://github.com/{github-organization}/{project}'
@@ -43,7 +43,7 @@
 
     wrappers:
       - lf-infra-wrappers:
-          build-timeout: '30'
+          build-timeout: '45'
           jenkins-ssh-credential: '{github-onf-bot-ssh-credential}'
       - credentials-binding:
           - username-password-separated:
@@ -112,7 +112,7 @@
 
     wrappers:
       - lf-infra-wrappers:
-          build-timeout: '30'
+          build-timeout: '45'
           jenkins-ssh-credential: '{github-onf-bot-ssh-credential}'
       - credentials-binding:
           - username-password-separated: