Add icon-bg and icon-fg to fix_args

Fix the icon-bg and icon-fg arguments and also create the folder
mipmap-anydpi-v26 if it doesn't exists before trying to create a file
inside.

https://phabricator.endlessm.com/T33593

Author: danigm

pythonforandroid/bootstraps/common/build/build.py

@@ -349,7 +349,10 @@ def make_package(args):
     if args.icon_fg and args.icon_bg:
         shutil.copy(args.icon_fg, join(res_dir, 'mipmap/icon_foreground.png'))
         shutil.copy(args.icon_bg, join(res_dir, 'mipmap/icon_background.png'))
-        with open(join(res_dir, 'mipmap-anydpi-v26/icon.xml'), "w") as fd:
+        mipmap_anydpi = join(res_dir, 'mipmap-anydpi-v26')
+        if not exists(mipmap_anydpi):
+            os.mkdir(mipmap_anydpi)
+        with open(join(mipmap_anydpi, 'icon.xml'), "w") as fd:
             fd.write("""<?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@mipmap/icon_background"/>

pythonforandroid/toolchain.py

@@ -988,7 +988,7 @@ def _fix_args(args):
 
         fix_args = ('--dir', '--private', '--add-jar', '--add-source',
                     '--whitelist', '--blacklist', '--presplash', '--icon',
-                    '--fileprovider-paths')
+                    '--icon-bg', '--icon-fg', '--fileprovider-paths')
         unknown_args = args.unknown_args
 
         for asset in args.assets: