[Skiboot] [PATCH] Makefile: Update clean target for stb

[Michael Neuling]

On Thu, 2017-03-16 at 18:15 +1100, Stewart Smith wrote:
> Michael Neuling <mikey at neuling.org> writes:
> > stb leaves a bunch of files around even after clean.  Fix this.
> > 
> > Signed-off-by: Michael Neuling <mikey at neuling.org>
> > ---
> >  Makefile.main       | 2 +-
> >  libstb/Makefile.inc | 5 +++++
> >  2 files changed, 6 insertions(+), 1 deletion(-)
> 
> whoops, that was my fault.
> 
> merged as of 246fb0457e6aabd81b617ab1d5423234edce3dc4 just with using
> the explicit $TARGET rather than *.stb, just in case you saved some stb
> headered things off for later use.

OK, sound good. thanks.

Mikey