mynewt: Update latest tags in repository.yml

0-latest and 1-latest should point to latest stable release.

Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
diff --git a/repository.yml b/repository.yml
index 910e6fb..97b3485 100644
--- a/repository.yml
+++ b/repository.yml
@@ -31,7 +31,7 @@
     "1.5.0": "v1.5.0"
 
     "0-dev": "0.0.0"        # master
-    "0-latest": "1.3.1"     # latest stable release
-    "1-latest": "1.3.1"     # latest stable release
+    "0-latest": "1.5.0"     # latest stable release
+    "1-latest": "1.5.0"     # latest stable release
 
-    "1.0-latest": "1.3.1"
+    "1.0-latest": "1.5.0"