[U-Boot] [U-Boot, v2, 1/1] checkpatch: update from Linux v4.13-rc6

[Tom Rini]

On Tue, Sep 12, 2017 at 09:57:45AM +0200, Heinrich Schuchardt wrote:

> Checkpatch produces the following warning:
> 
> Unescaped left brace in regex is deprecated here
> (and will be fatal in Perl 5.30), passed through in regex;
> marked by <-- HERE in m/^(\+.*(?:do|\))){ <-- HERE /
> at scripts/checkpatch.pl line 3348.
> 
> The curent checkpatch of the Linux kernel corrects this
> bug and many others.
> 
> It provides improved colored output.
> 
> So replace checkpatch by the current Linux version.
> 
> Add an empty file scripts/const_structs.checkpatch.
> We can later fill it according to our needs.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

This drops the changes we have from f503cc49a570 which I think at this
point are the only changes we have, and also that (at the time) upstream
was uninterested in.  The quick way to be sure here would be to diff
6b9709d91488993a8d7945995778cc63a24065ef's checkpatch.pl with
v3.14-rc4's version.  Thanks!

-- 
Tom
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