Marking set of ebuilds as stable

Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8704119294774395553
Cr-Automation-Id: cros_source/push_uprevs
Change-Id: I264a93f70d6ef168bbe05d5d21b2c12fd5516203
diff --git a/overlay-skywalker/chromeos-base/chromeos-bsp-skywalker/chromeos-bsp-skywalker-0.0.1-r30.ebuild b/overlay-skywalker/chromeos-base/chromeos-bsp-skywalker/chromeos-bsp-skywalker-0.0.1-r31.ebuild
similarity index 100%
rename from overlay-skywalker/chromeos-base/chromeos-bsp-skywalker/chromeos-bsp-skywalker-0.0.1-r30.ebuild
rename to overlay-skywalker/chromeos-base/chromeos-bsp-skywalker/chromeos-bsp-skywalker-0.0.1-r31.ebuild