meson: build display-tree example

The 'display-tree' example program wasn't build with meson.

Signed-off-by: Hannes Reinecke <[email protected]>

Author: hreinecke

examples/meson.build

@@ -19,6 +19,13 @@ executable(
     include_directories: [incdir, internal_incdir]
 )
 
+executable(
+    'display-tree',
+    ['display-tree.c'],
+    link_with: libnvme,
+    include_directories: [incdir, internal_incdir]
+)
+
 executable(
     'discover-loop',
     ['discover-loop.c'],