meta-phosphor: Add trace-enable service

The trace-enable service turns on a set of Linux trace events based
on a configuration file. The recipe generates the configuration file
from a variable that can be appended across layers.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Change-Id: I319e21c81b4da10dd08877c2f78cd4698fc94cd7
diff --git a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
index 6d7d76a..648cab3 100644
--- a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
+++ b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
@@ -69,6 +69,7 @@
         libgpiod-tools \
         lrzsz \
         rsync \
+        trace-enable \
         "
 
 SUMMARY:${PN}-dbus-monitor = "Support for dbus monitoring"