bitbake: cookerdata: Remove incorrect SystemExit usage

Calling SystemExit doesn't work well with server/client usage since the string
isn't printed to the right place. Use bb.fatal() instead which prints the right
log output and raises and handled exception which then shows correctly on the
UI.

(Bitbake rev: aaefb43b41a0d9b16a59643136268eb6e5d48cd2)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/cookerdata.py

@@ -473,7 +473,7 @@ class CookerDataBuilder(object):
                 msg += (" and bitbake did not find a conf/bblayers.conf file in"
                         " the expected location.\nMaybe you accidentally"
                         " invoked bitbake from the wrong directory?")
-            raise SystemExit(msg)
+            bb.fatal(msg)
 
         if not data.getVar("TOPDIR"):
             data.setVar("TOPDIR", os.path.abspath(os.getcwd()))