linux, android: add crashpad targets to gn_all

Bug: crashpad:30
Change-Id: I07e2be079c95825c57481ac8b53cf6e790443be1
Reviewed-on: https://chromium-review.googlesource.com/986658
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#547312}
2 files changed