[coreboot] lzma v3 fails to compile under gcc-4.3.x

[Devils-Hawk]

compiling with gcc-4.3.0 will result in the following or similar:
> error: 'memcpy' is not a member of 'std'

because gcc-4.3.0 does not include certain standard C-headers in C++ programs 
by default anymore. Attached simple stupid patch should fix that.

regards,
devh