powerpc: Make it clearer that systbl check errors are errors

[Michael Ellerman]

On Mon, 2018-04-30 at 03:27:36 UTC, Michael Ellerman wrote:
> If the systbl_chk.sh checks fail we print a message, but with no
> indication that it's an error. That makes it hard to find in build
> logs with eg. grep.
> 
> So prefix any output with "Error:".
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/53da14d0833a663cb98ef111ed91c5

cheers