packagegroup-core-tools-profile: Conditionalize LTTng packages via bbappend

:Release Notes:
Only add the packages related to LTTng (lttng-ust, lttng-tools,
lttng-modules, and babeltrace) to packagegroup-core-tools-profile if
LTTng is enabled (WEBOS_LTTNG_ENABLED is "1")
.
:Detailed Notes:

:Testing Performed:
Confirmed using the output from:
  $ bitbake -e packagegroup-core-tools-profile | \
        grep RDEPENDS_packagegroup-core-tools-profile
that the LTTng-related packages are only present when
WEBOS_LTTNG_ENABLED is "1".

:QA Notes:

:Issues Addressed:
[GF-58032] LTTng dynamic libraries appear in the production image
[GF-58221] CCC: packagegroup-core-tools-profile=webos1

Open-webOS-DCO-1.0-Signed-off-by: Herb Kuta <herb.kuta@lge.com>
Open-webOS-DCO-1.0-Signed-off-by: Susan Montooth <susan.montooth@lge.com>

Change-Id: I012e4ac1b97f20fadabb91e6fcb7b532d0b41afa
Originally-reviewed-on: https://g2g.palm.com/4412
Reviewed-on: https://g2g.palm.com/4423
Reviewed-by: DCO Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>