bitbake: utils: Allow to_boolean to support int values

Some variables may be set as:

X = 1

as well the more usual

X = "1"

so add support to to_boolean to handle this case.

(Bitbake rev: e7df13a61911b7431802af2b4d7472b2aaf346fa)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/utils.py

@@ -990,6 +990,9 @@ def to_boolean(string, default=None):
     if not string:
         return default
 
+    if isinstance(string, int):
+        return string != 0
+
     normalized = string.lower()
     if normalized in ("y", "yes", "1", "true"):
         return True