USB power delivery packets : add text trace

Add a human readable text trace of the decoded packets content.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BUG=none
TEST=sigrok-cli -i samus_UUT5-UFP_DP_v3.sr -P usb_pd_bmc:cc=CC1,usb_pd_packet -A usb_pd_packet=text

Change-Id: I2b63ce5112be85ed2bb1a228fc5d2c3ce9f79500
1 file changed