Update to Buildroot 2016.11

 * Regenerate defconfigs
  * The GCC 5 series is the buildroot default, so we need to explicitly
    select our GCC version if we want something else. We've gone with
    GCC 4.9 for Witherspoon. All other platforms are GCC 6.
  * Move to the latest glibc and binutils releases
  * We still use the 4.4 kernel headers for all platforms, including
    those on the 4.9 release candiates. This is because buildroot is yet
    to understand the 4.9 kernel.

One important part of this shift is to update the external format. From
the Buildroot documentation:

> Before Buildroot 2016.11, it was possible to use only one br2-external
> tree at once. With Buildroot 2016.11 came the possibility to use more
> than one simultaneously (for details, see Section 9.2, “Keeping
> customizations outside of Buildroot”).
>
> This however means that older br2-external trees are not usable as-is. A
> minor change has to be made: adding a name to your br2-external tree.
>
> This can be done very easily in just a few steps:
>
> First, create a new file named external.desc, at the root of your
> br2-external tree, with a single line defining the name of your
> br2-external tree:
>
> $ echo 'name: NAME_OF_YOUR_TREE' >external.desc
> Note. Be careful when choosing a name: It has to be unique and be made
> with only ASCII characters from the set [A-Za-z0-9_].
>
> Then, change every occurence of BR2_EXTERNAL in your br2-external tree
> with the new variable:
>
> $ find . -type f | xargs sed -i
> 's/BR2_EXTERNAL/BR2_EXTERNAL_NAME_OF_YOUR_TREE_PATH/g'
> Now, your br2-external tree can be used with Buildroot 2016.11 onward.
>
> Note: This change makes your br2-external tree incompatible with
> Buildroot before 2016.11.

Signed-off-by: Joel Stanley <joel@jms.id.au>

1 files changed, 0 insertions, 0 deletions

diff --git a/buildroot b/buildroot
-Subproject 211bd050aa32bfda12da1e9495234e01d6862b3
+Subproject 51f1ac92ec98cfcffd2cb35d5998821480a12e3