phosphor-debugtools: Add latencytop tool

Note this doesn't *quite* work: ncurses is missing from the debug tools
tarball and so the application can't execute. The issue is captured in:

    https://github.com/openbmc/openbmc/issues/2430

Until that's resolved you'll have to copy the library to somewhere
accessible and put the symlinks in place if necessary.

Change-Id: I1dd5239cb8b86d7a79f2591f241695e4f9122c68
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/meta-phosphor/common/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb b/meta-phosphor/common/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb
index 1a6d4b7..9ca709d 100644
--- a/meta-phosphor/common/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb
+++ b/meta-phosphor/common/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb
@@ -12,4 +12,5 @@
     phosphor-logging-test \
     lmsensors-sensors \
     tcpdump \
+    latencytop \
     "