build: Regenerate meson for sdbus++ update

Change-Id: I6c7b9fc22d7acf593c268713b2ef837ab983b956
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/gen/org/open_power/Proc/meson.build b/gen/org/open_power/Proc/meson.build
index 0914954..8f3d257 100644
--- a/gen/org/open_power/Proc/meson.build
+++ b/gen/org/open_power/Proc/meson.build
@@ -2,15 +2,14 @@
 subdir('FSI')
 generated_others += custom_target(
     'org/open_power/Proc/FSI__markdown'.underscorify(),
-    input: [ meson.project_source_root() / 'org/open_power/Proc/FSI.errors.yaml',  ],
+    input: [ '../../../../org/open_power/Proc/FSI.errors.yaml',  ],
     output: [ 'FSI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.project_source_root(),
+        '--directory', meson.current_source_dir() / '../../../..',
         'org/open_power/Proc/FSI',
     ],
-    build_by_default: true,
 )