since simtrace supports multiple application, but currently not
at the same time, the feature support is not app specific
Change-Id: I98ff92450cc2a247b294d2e15df171f3fe7c5156
because the applications share the board capabilities defined in
libboard/*/include/board.h and USB configurations are enabled according
to the previously defined capabilities in libcommon/source.usb.c, all
applications actually offer the same functions.
thus creating the trace application is only mainly a cosmetic change, as the
sniffer function will also be present and enabled in the cardem application.
Change-Id: I24b3500a0905cbd622507722280b3c7e7f188bde
Kévin Redon