devlink: use tracepoint_enabled() helper

In preparation for the trap code move, use tracepoint_enabled() helper
instead of trace_devlink_trap_report_enabled() which would not be
defined in that scope.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230828061657.300667-10-jiri@resnulli.us


Signed-off-by: Jakub Kicinski <kuba@kernel.org>