[PATCH] scripts: dtc: fix a false alarm for node_name_chars_strict

[Rob Herring]

On Tue, May 31, 2022 at 04:43:18PM -0400, Frank Rowand wrote:
> On 5/31/22 01:33, Qun-Wei Lin wrote:
> > The function check_node_name_chars_strict issues a false alarm when
> > compiling an overlay dts.
> > 
> > /fragment at 0/__overlay__: Character '_' not recommended in node name
> > 
> > This workaround will fix it by skip checking for node named __overlay__.
> 
> This is not a false alarm.
> 
> Do not special case node name "__overlay__".  This node name should never
> occur in a modern overlay source file.

A dtbo -> dts pass will give warnings, so handling these nodes is 
worthwhile. Though thinking a bit more about it, I think this one is off 
by default, but W=2 turns it on.

Rob