PM / ACPI: Blacklist Vaio VGN-FW520F machine known to require acpi_sleep=nonvs

Sony Vaio VGN-FW520F does not resume correctly without
acpi_sleep=nonvs, so add it to the ACPI sleep blacklist.

References: https://bugzilla.kernel.org/show_bug.cgi?id=16396#c86


Signed-off-by: Bogdan Radulescu <bogdan@nimblex.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>