platform-drivers-x86 for 4.3-2

Fix an issue introduced by the previous major toshiba rework. Add a quirk.
Workaround a few platform specific firmware items. One cleanup to wmi I
inadvertently dropped from a previous pull request.

hp-wmi
 - limit hotkey enable

toshiba_acpi:
 - Fix hotkeys registration on some toshiba models
 - Fix USB Sleep and Music always disabled

wmi:
 - Remove private %pUL implementation

asus-nb-wmi:
 - Add wapf=4 quirk for X456UA/X456UF
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