patman: Move library functions into a library directory

The patman directory has a number of modules which are used by other tools
in U-Boot. This makes it hard to package the tools using pypi since the
common files must be copied along with the tool that uses them.

To address this, move these files into a new u_boot_pylib library. This
can be packaged separately and listed as a dependency of each tool.

Signed-off-by: Simon Glass <sjg@chromium.org>

tools/dtoc/main.py

@@ -35,7 +35,7 @@ sys.path.insert(0, os.path.join(our_path,
                 '../../build-sandbox_spl/scripts/dtc/pylibfdt'))
 
 from dtoc import dtb_platdata
-from patman import test_util
+from u_boot_pylib import test_util
 
 def run_tests(processes, args):
     """Run all the test we have for dtoc
@@ -65,7 +65,8 @@ def RunTestCoverage():
     """Run the tests and check that we get 100% coverage"""
     sys.argv = [sys.argv[0]]
     test_util.run_test_coverage('tools/dtoc/dtoc', '/main.py',
-            ['tools/patman/*.py', '*/fdt*', '*test*'], args.build_dir)
+            ['tools/patman/*.py', 'tools/u_boot_pylib/*','*/fdt*', '*test*'],
+            args.build_dir)
 
 
 if __name__ != '__main__':