Marking set of ebuilds as stable

Marking 9999 ebuild for sys-boot/depthcharge as stable.

Marking 9999 ebuild for chromeos-base/ec-utils as stable.

Marking 9999 ebuild for chromeos-base/chromeos-ec-headers as stable.

Marking 9999 ebuild for chromeos-base/ec-devutils as stable.

Marking 9999 ebuild for chromeos-base/ec-utils-test as stable.

Marking 9999 ebuild for chromeos-base/chromeos-ec as stable.

Change-Id: I1af934b47dd31d22c7379e89cab0b9767c73ae99
6 files changed