trace: Update proftool to use new binary format

The old text format is not much used anymore. Instead a new trace-cmd tool
has introduced a binary format for trace records.

Add support for generating this format. This involves removing the old
text format, adding various helpers for the new format and adjusting the
code to use an output file instead of stdout.

Signed-off-by: Simon Glass <sjg@chromium.org>
2 files changed