recipetool/devtool: Ensure server knows about changed files

Bitbake has changed to require notification when metadata changes in the middle of tinfoil
sessions. Add the required function calls at the places metadata is changed.

(From OE-Core rev: e5574163ab49a8f51b2b34fd37acfd1cad9b7595)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/devtool/standard.py

@@ -587,6 +587,7 @@ def _extract_source(srctree, keep_temp, devbranch, sync, config, basepath, works
         preservestampfile = os.path.join(sstate_manifests, 'preserve-stamps')
         with open(preservestampfile, 'w') as f:
             f.write(d.getVar('STAMP'))
+        tinfoil.modified_files()
         try:
             if is_kernel_yocto:
                 # We need to generate the kernel config