servod: clean up power_tools.xml situation

This change:

- moves the short-hand configurations for ina219, ina3221, and ina231
from common.xml into power_tools.xml
> This is to have the short-hands in their thematically appropriate
config file.

- removes power_tools.xml inclusion in autogenerated power maps, as
power_tools is now default included in common.xml
> This is to avoid a harmless error message that complains about importing
power_tools.xml twice - once from common.xml & once from the power
configuration file.

- includes common.xml in sweetberry.xml
> This is now required for sweetberry to have power_tools.xml as the
configuration files do not include it anymore (see point above)
>> extra tiny perk: sweetberry gets some useful controls such as
config_files

BUG=b:117240799
TEST=manual testing
> builds fine
> passes data-integrity test
> with sweetberry
sudo servod -c servo_sweetberry_rails_addr.xml &
dut-control j4_9_cfg_reg:low_power
(no error/issue)

Change-Id: I8b46db4f32b51f7fc54d0f6e6a0754af907da9be
Reviewed-on: https://chromium-review.googlesource.com/1260682
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Ruben Rodriguez Buchillon <coconutruben@chromium.org>
Reviewed-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
4 files changed