dev-install: prevent package.provided clobbering

We have 2 sources of package.provided (packages that are assumed to be
preinstalled by portage), and copying both to the same directory
clobbers one of them.
Give those package.provided configs unique names

BUG=b:219867614
TEST=CQ

Change-Id: I3c06c0feca20731e4bee76965503d52e8c117b68
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/3514259
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Auto-Submit: Sergey Frolov <sfrolov@google.com>
Tested-by: Sergey Frolov <sfrolov@google.com>
Commit-Queue: Sergey Frolov <sfrolov@google.com>
1 file changed