emulators/qemu: Update version 2.8.1=>2.9.0

• Reorder LIB_DEPENDS
• Add VDE Networking OPTION [1]
• Move SAMBA CONFIGURE options to new clause from default
• Fix CONFIGURE failure [2]

PR: 220836[1], 220835[2]
submitted by: holindho@saunalahti.fi [1][2]
Relnotes: https://wiki.qemu.org/index.php/ChangeLog/2.9