cpu_x86: Separate signature parsing from x86ModelParse
cpu_x86: Separate signature parsing from x86ModelParse

The code is separated into a new x86ModelParseSignature function.

Signed-off-by: Jiri Denemark <62bdf77dc47919a4d59a91822129d14633cfca81@redhat.com>
Reviewed-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>

jfehlig/libvirt,andreabolognani/libvirt,jfehlig/libvirt,crobinso/libvirt,libvirt/libvirt,eskultety/libvirt,andreabolognani/libvirt,libvirt/libvirt,jardasgit/libvirt,olafhering/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,nertpinx/libvirt,andreabolognani/libvirt,eskultety/libvirt,jardasgit/libvirt,nertpinx/libvirt,zippy2/libvirt,olafhering/libvirt,fabianfreyer/libvirt,libvirt/libvirt,andreabolognani/libvirt,olafhering/libvirt,crobinso/libvirt,zippy2/libvirt,zippy2/libvirt,jardasgit/libvirt,jfehlig/libvirt,eskultety/libvirt,crobinso/libvirt,eskultety/libvirt,andreabolognani/libvirt,zippy2/libvirt,nertpinx/libvirt,crobinso/libvirt,fabianfreyer/libvirt,eskultety/libvirt,jfehlig/libvirt,jardasgit/libvirt,libvirt/libvirt,fabianfreyer/libvirt,olafhering/libvirt