Move fsl-default*.inc from distro to machine

It makes no sense to have distro related configurations in a BSP
layer. So let's have these common parts (provides, version etc)
in machine directory instead.

[GITHUB #73]

Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>

conf/machine/raspberrypi.conf

@@ -3,9 +3,9 @@
 #@DESCRIPTION: Machine configuration for the RaspberryPi http://www.raspberrypi.org/ Board
 #@MAINTAINER: John Willis
 
-include conf/distro/include/rpi-default-settings.inc
-include conf/distro/include/rpi-default-versions.inc
-include conf/distro/include/rpi-default-providers.inc
+include conf/machine/include/rpi-default-settings.inc
+include conf/machine/include/rpi-default-versions.inc
+include conf/machine/include/rpi-default-providers.inc
 require conf/machine/include/tune-arm1176jzf-s.inc
 
 IMAGE_FSTYPES ?= "tar.bz2 ext3 rpi-sdimg"