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

[Stewart Smith]

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.

-- 
Stewart Smith
OPAL Architect, IBM.