releases: update to include 3.1.10

Adding 3.1.10 to documentation switcher and release list.

(From yocto-docs rev: 86b44b72c366f56d6977e7462aca8821721d89bd)

Signed-off-by: Michael Halstead <mhalstead@linuxfoundation.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/sphinx-static/switchers.js

@@ -5,7 +5,7 @@
     'dev': 'dev (3.4)',
     '3.3.2': '3.3.2',
     '3.2.4': '3.2.4',
-    '3.1.9': '3.1.9',
+    '3.1.10': '3.1.10',
     '3.0.4': '3.0.4',
     '2.7.4': '2.7.4',
   };