[Libguestfs] [PATCH 0/2] Use -bios bios-fast.bin where supported.

NOTE: Not for upstream, yet. This depends on 3 non-upstream patches. - The qemu rework in libguestfs, which in turn depends on what Pino is up to. - Support for '-L ?' in qemu: https://lists.gnu.org/archive/html/qemu-devel/2016-05/threads.html#02596 - Support for bios-fast.bin in qemu: https://lists.gnu.org/archive/html/qemu-devel/2016-05/threads.html#02408 This commit uses -bios bios-fast.bin if available, which basically stops SeaBIOS from trying to do PCI probing during boot, which is a waste of time when using the -kernel option. Rich.