[aml] Merge tag '2012.05' from official buildroot git tree

Conflicts:
	package/connman/S45connman
	package/connman/connman.mk
	package/iproute2/iproute2.mk
	package/jpeg/jpeg.mk
	package/ntfs-3g/ntfs-3g.mk
	package/pkg-gentargets.mk
	package/proftpd/proftpd.mk
	package/tiff/tiff.mk
	package/udev/Config.in
	package/udev/udev.mk
	toolchain/toolchain-common.in
	toolchain/toolchain-external/ext-tool.mk
[aml] Fixes after the merge with buildroot 2012.05:

* Buildroot 2012.05 provides a package for boost so remove the thirdparty version
* BR2_KERNEL_MIRROR is supposed to point to kernel.org, not github
* Add m4-1.4.16-no-gets.patch
* Regenerate udev patches against udev-182
* toolchainfile.cmake is now generated in $(HOST_DIR)/usr/share/buildroot/
* Remove sdl-fix__XGetRequest_undefined.patch because it is now included upstream
* Host version of sdl needs a host version of alsa-lib
* Build static host version of libpython
[aml] Fix lirc package for cross-compilation

If the toolchain is changed then binutils may have a different prefix
[aml] Bump package versions

The previous versions of GDB and Busybox no longer exist on buildroot
2012.05
Merge commit 'bb7fd30' into 2012.05