[U-Boot] Silence "make clean"

[Marek Vasut]

Dear Andreas Bießmann,

> Dear Marek Vasut,
> 
> On 13.11.2012 17:30, Marek Vasut wrote:
> > Dear Andreas Bießmann,
> > 
> >> On 13.11.2012 17:21, Wolfgang Denk wrote:
> >>> Dear Marek Vasut,
> >>> 
> >>> In message <201211131453.18366.marex at denx.de> you wrote:
> >>>>> 	make[1]: Entering directory `.../doc/DocBook'
> >>>>> 	make[1]: Leaving directory `.../doc/DocBook'
> >>>>> 
> >>>>> We didn't have this before, and we shouldn't have this.
> >>>>> 
> >>>>> Can you please fix this regression?  Thanks.
> >>>> 
> >>>> Is this not fixed in latest sources? I believe Tom fixed it.
> >>> 
> >>> It is not fixed in current top of tree in master, i. e.
> >>> v2013.01-rc1-78-g59852d0
> >> 
> >> Tom did only 'fix' a special case for MAKEALL:
> >> ed296d206a1840c0a0b6c1322379c950f9996905
> > 
> > How do you even replicate this?
> 
> just call 'make clean' in your u-boot source ;)

Let me just crawl under my rock now ... I'll pop up again once I'm over my 
shame.

... sum ... sum ... sum ... plop ...

Best regards,
Marek Vasut