bitbake: Move the logger initialization from cooker to utils

In order to move the environment cleaning, which wants to log a
message, before cooker creation, the logging facility initialization
needs to happen earlier.  So, it is now in init_logger in utils.py and
called from bitbake before the creation of the data object.

It also seems more correct to initialize a global facility like this
from a more global context than the creation of an object, of which
there could theoretically be many.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

bitbake/bin/bitbake

@@ -152,6 +152,9 @@ Default BBFILES are the .bb files in the current directory.""" )
     # server is daemonized this logfile will be truncated.
     cooker_logfile = os.path.join (os.getcwd(), "cooker.log")
 
+    bb.utils.init_logger(bb.msg, configuration.verbose, configuration.debug,
+                         configuration.debug_domains)
+
     cooker = bb.cooker.BBCooker(configuration, server)
 
     # Clear away any spurious environment variables. But don't wipe the