v3/ec: convert all printk to LOG or shell

Replace all calls to printk with either LOG_ERR or shell_fprintf, as
appropriate to the context.
Clean up order of includes.
Clean up formatting/indentation.

TEST=build and run

Change-Id: I05c484333204b93f623bd7d74f4bab6c5e578909
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/chameleon/+/2840687
Tested-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Alexandru M Stan <amstan@chromium.org>
Commit-Queue: Paul Fagerburg <pfagerburg@chromium.org>
10 files changed