packagegroup-core-tools-profile: replace 'legacy' lttng with lttng 2.0

packagegroup-core-tools-profile: replace 'legacy' lttng with lttng 2.0

packagegroup-core-tools-profile currently pulls in the 'legacy' lttng
packages, which are useless without legacy lttng support in the kernel.

This makes packagegroup-core-tools-profile pull in the lttng 2.0
packages instead, which don't need any kernel modifications to work.

Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>