fsnotify: Don't scan irmap for tempfs

On this fs path can be resolved via proc, so even if
we're asked to do force-irmap, try to go via regular
resolve anyway.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
irmap: Add /lib/udev into hints, fake path and logging

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>