bitbake: Replace deprecated git branch parameter "--set-upstream"

Since 2017-08-17 (git version 2.14.1.473.g3ec7d702a) using deprecated
git branch parameter "--set-upstream" causes a fetcher error. Replace
it by "--set-upstream-to".

https://git.kernel.org/pub/scm/git/git.git/commit/?id=52668846ea2d41ffbd87cda7cb8e492dea9f2c4d


says, it's deprecated since 2012-08-30 so hopefully all still supported
host distributions have new enough git to support "--set-upstream-to".

ERROR: PACKAGE do_unpack: Fetcher failure: ...;
git -c core.fsyncobjectfiles=0 branch --set-upstream master origin/master failed with exit code 128, output:
fatal: the '--set-upstream' option is no longer supported. Please use '--track' or '--set-upstream-to' instead.

ERROR: PACKAGE do_unpack: Function failed: base_do_unpack

(Bitbake rev: 991b533f1d61042a7b3edd1fbf3dea0bf9991606)

Signed-off-by: Andre Rosa <andre.rosa@lge.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Xo Wang <xow@google.com>
(cherry-picked from unreleased Yocto 2.2.3. Fixes openbmc/openbmc#2608.)
git-subtree-dir: import-layers/yocto-poky
Change-Id: Ib0fc0b9533b3d4813a5843b232f6f0088dacf56a