[PATCH] scripts: Provide script that helps using cpp defines in dcd tables

[Sam Ravnborg]

On Tue, Jul 18, 2017 at 05:23:20PM +0200, Uwe Kleine-König wrote:
> This script was used to help create commit ("ARM: imx: use register
> defines in imxcfg files instead of plain numbers").
> 
> It is documented in Perl Pod, you can pretty-print it using
> 
> 	$ perldoc scripts/regsubst.pl.

Could you add this info as a comment in the perl script too?
So people not used to perl is reminded by this when they look
in the perl script and see something only halfway readable.

(halway readable is maybe what one are sued to with respect
to (some) perl scripts, but thats another story).

	Sam