Some fixes to linuxu­lat­or stuff

Today I fixed 3 linux ports (con­vert­ing to the “new” world or­der) to not use RPM dir­ectly (the right thing is to use rpm2cpio, and bsd.linux-rpm​.mk provides some nice stuff to handle this).

In the last week I fixed some stuff in the linuxu­lat­or-MFC patch. It should now com­pile on amd64 and i386 without prob­lems (at least the code which I have loc­ally). There’s one (strange) pan­ic re­port which I want to ana­lyze and fix (if it is linuxu­lat­or re­lated) with Ro­man be­fore I up­date the patch on my site.