UNAPPLIED: [PATCH][FOCAL] UBUNTU: [Config] s390x bump march to z13, with tune to z15

[Seth Forshee]

On Tue, Oct 22, 2019 at 03:39:40PM -0500, Seth Forshee wrote:
> On Tue, Oct 22, 2019 at 02:40:06PM +0100, Dimitri John Ledkov wrote:
> > BugLink: https://bugs.launchpad.net/bugs/1837525
> > 
> > Signed-off-by: Dimitri John Ledkov <xnox at ubuntu.com>
> 
> Applied to unstable/master, thanks!

Seems the compiler (or at least the cross compiler) in focal doesn't
support -mtune=z15:

s390x-linux-gnu-gcc: error: unrecognized argument in option '-mtune=z15'
s390x-linux-gnu-gcc: note: valid arguments to '-mtune=' are: arch10 arch11 arch12 arch13 arch5 arch6 arch7 arch8 arch9 native z10 z13 z14 z196 z9-109 z9-ec z900 z990 zEC12; did you mean 'z10'?

Seems we need to either put this off until we have compiler support, or
else tune for a different machine.