wic: use new kickstart parser

Used KickStart parser class instead of pykickstart API.

This commit breaks wic as data structures and field names
provided by new API are a bit different from old ones.
This issue will be addressed in the following commits.

(From OE-Core rev: f72439d321220b724bfe2b4a92fed46c2c19fb3f)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/wic/conf.py

@@ -17,8 +17,8 @@
 
 import os
 
+from wic.kickstart import KickStart
 from wic import msger
-from wic import kickstart
 from wic.utils import misc
 
 
@@ -87,7 +87,7 @@ class ConfigMgr(object):
         if not ksconf:
             return
 
-        ksobj = kickstart.read_kickstart(ksconf)
+        ksobj = KickStart(ksconf)
 
         self.create['ks'] = ksobj
         self.create['name'] = os.path.splitext(os.path.basename(ksconf))[0]

scripts/lib/wic/imager/direct.py

@@ -27,7 +27,7 @@
 import os
 import shutil
 
-from wic import kickstart, msger
+from wic import msger
 from wic.utils import fs_related
 from wic.utils.oe.misc import get_bitbake_var
 from wic.utils.partitionedfs import Image