utility: Change autoupdate toolkits to statically linked.
utility: Change autoupdate toolkits to statically linked.

Utilities shared by auto update programs (ex, firmware updater) must be
statically linked.

BUG=chrome-os-partner:11630
TEST=emerge-link vboot_reference

Change-Id: I74f7ad9f365005624f55cc3fcfc8dc31de0d69c2
Reviewed-on: https://gerrit.chromium.org/gerrit/28365
Tested-by: Hung-Te Lin <8a7fce4940baad93a69f5073b383c85deed9d9c4@chromium.org>
Reviewed-by: Che-Liang Chiou <57969107b634cf11cb64e9d768fd46929066adab@chromium.org>
Commit-Ready: Hung-Te Lin <8a7fce4940baad93a69f5073b383c85deed9d9c4@chromium.org>

coreboot/vboot,ccaapton/vboot_reference,geekboxzone/mmallow_external_vboot_reference,ccaapton/vboot_reference,coreboot/vboot,geekboxzone/mmallow_external_vboot_reference,marineam/seismograph,acorn-marvell/vboot_reference,geekboxzone/mmallow_external_vboot_reference,ionave/seismograph,ionave/seismograph,ccaapton/vboot_reference,marineam/seismograph,ionave/seismograph,coreboot/vboot,acorn-marvell/vboot_reference,geekboxzone/mmallow_external_vboot_reference,marineam/seismograph,coreboot/vboot,acorn-marvell/vboot_reference,coreboot/vboot,acorn-marvell/vboot_reference,ccaapton/vboot_reference,geekboxzone/mmallow_external_vboot_reference,marineam/seismograph