scripts/lib/create_npm: handle Public Domain licenses

Rewrite Public Domain as PD, as that's what the place holder in
meta/files/common_licenses is called.

(From OE-Core rev: d7f0af5aa90a9ef7714c842fb4cb762017820768)

Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/recipetool/create_npm.py

@@ -60,6 +60,7 @@ class NpmRecipeHandler(RecipeHandler):
                     if license[-1] == ')':
                         license = license[:-1]
                 license = license.replace('MIT/X11', 'MIT')
+                license = license.replace('Public Domain', 'PD')
                 license = license.replace('SEE LICENSE IN EULA',
                                           'SEE-LICENSE-IN-EULA')
         return license