meta: Add explict branch to git SRC_URIs

There is uncertainty about the default branch name in git going forward.
To try and cover the different possible outcomes, add branch names to all
git:// and gitsm:// SRC_URI entries.

This update was made with the script added to contrib in this patch which
aims to help others convert other layers.

(From OE-Core rev: 37b4f66fa23979cbfe82679a74ce21b11fc61557)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit b51c405faf6f8c0365f7533bfaf470d79152a463)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/cases/fetch.py

@@ -99,7 +99,7 @@ class Dependencies(OESelftestTestCase):
 
             r = """
             LICENSE="CLOSED"
-            SRC_URI="git://example.com/repo"
+            SRC_URI="git://example.com/repo;branch=master"
             """
             f = self.write_recipe(textwrap.dedent(r), tempdir)
             d = tinfoil.parse_recipe_file(f)