The shipped /lib/drivers.d/10-network.toml scopes vendor+class matches to
specific device ids with `device = [0x8168, 0x8169]` (rtl8168d) and a
42-id ixgbed list — the documented, intended form. But RawDriverMatch
parsed `device` as a single u16, so the list form failed to deserialize
("invalid type: sequence, expected u16") and took the whole file down,
leaving driver-manager with zero network drivers loaded — including
virtio-netd, so no network came up at all even in QEMU.
Parse `device` as scalar-or-list (U16OrList) and fan each raw match out
to one DriverMatch per id (an OR alternative carrying the shared
vendor/class/subclass constraints). Scalar and device-less matches keep
their previous 1:1 behaviour. Adds regression tests for both forms.
vasilito
7eefe35b6f