Increment to version R58-9311.70.9-1

Generated by firmware-cr50-mp-r86-9311.70.B-branch.

Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8844772922784860641
Cr-Automation-Id: cros_version/bump_version
Change-Id: Iba5274013b14ef26b022b6296c8f35d14e364bae
1 file changed