[Devil] Replace generated Devil config with jinja template.

This change will hopefully allow us to configure devil more based
on the build config. For example, it will let us use the same
android_sdk_tools to run tests that we use to build with.

BUG=

Review URL: https://codereview.chromium.org/1812383003

Cr-Commit-Position: refs/heads/master@{#386461}
9 files changed