[dreambox] fix build DM800 patch provided by devzero

Here is my promised patch!
It shouldn't break other dreambox builds.
It makes the dm800 buildable with actual oe-alliance checkout.
The wpa_supplicant and dropbear build-problems (__u32 not defined) are also fixed (in linux-libc-headers).
In all changed bitbake recipes I incremented the PR variable - as it should be

Apply patch, start build, lay back and have fun.

Binary kernel-modules from Dream Multimedia are patched from gcc-4.6 versionmagic to gcc-4.8 (for loading without force option).
Patching is done per init script, which runs (and patch if necessary) before loading, so we do not need to distribute patched modules (see license, it is not allowed)