dev-install: update ebuild.sh path

Portage has started installing this into python-versioned subdirs:
	/usr/lib/portage/python2.7/ebuild.sh

Use a glob to pick up old/new paths.

BUG=chromium:462099
TEST=`cbuildbot amd64-generic-full` passes (includes vmtest/dev-install tests)

Change-Id: I7a0dd31a711097180194bc9c10f13a8bdb53d2eb
Reviewed-on: https://chromium-review.googlesource.com/254530
Trybot-Ready: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Bertrand Simonnet <bsimonnet@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
1 file changed