Made 2.6.25 kernel updates.

Made 2.6.25 kernel updates.
2008-06-09  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (utrace_derived_probe::join_group): Removed
	generated inclusion of tracehook.h.
	(utrace_var_expanding_copy_visitor::visit_target_symbol): Uses
	'_stp_arg(0)' to get value of '$syscall'.

2008-06-09  David Smith  <dsmith@redhat.com>

	* task_finder.c (__stp_utrace_task_finder_report_exec): Handles
	2.6.25 kernels.