ptunit-query: rewrite tsc test
ptunit-query: rewrite tsc test

The tsc test generates a TSC packet followed by a query-relevant packet to make
pt_read_ahead() process the TSC packet.

Just set the decoder's tsc field, instead, to avoid using pt_read_ahead().

Change-Id: Ic8945314932c26aea7083092d568d8531a880d48
Signed-off-by: Markus Metzger <5f675b2b36595f90898e014b548ff7d9bbff2ab7@intel.com>

breadbaconic/processor-trace,andikleen/processor-trace,drupalhunter-team/processor-trace,01org/processor-trace,01org/processor-trace,drupalhunter-team/processor-trace,breadbaconic/processor-trace,shadown/processor-trace,pombreda/processor-trace,andikleen/processor-trace,01org/processor-trace,hoangt/processor-trace,shadown/processor-trace,pombreda/processor-trace,hoangt/processor-trace