wic: use wic logger in core modules

Replaced msger with wic logger in the core wic modules.

(From OE-Core rev: cdd6675951b74075c9b9159f7465a88f83775bac)

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

scripts/lib/wic/ksparser.py

@@ -27,12 +27,15 @@
 
 import os
 import shlex
+import logging
+
 from argparse import ArgumentParser, ArgumentError, ArgumentTypeError
 
-from wic import msger
 from wic.engine import find_canned
 from wic.partition import Partition
 
+logger = logging.getLogger('wic')
+
 class KickStartError(Exception):
     """Custom exception."""
     pass
@@ -168,7 +171,7 @@ class KickStart():
 
         self._parse(parser, confpath)
         if not self.bootloader:
-            msger.warning('bootloader config not specified, using defaults')
+            logger.warning('bootloader config not specified, using defaults\n')
             self.bootloader = bootloader.parse_args([])
 
     def _parse(self, parser, confpath):