intel_extreme: add MSI support
XHCI/UHCI USB: forgot to get the x86 PCI module.
MediaPlayer: revert hrev38440

With #6610 fixed, it is now possible to open disabled menus in a
menubar, so the workaround introduced in hrev33840 is no longer
needed.

Signed-off-by: John Scipione <jscipione@gmail.com>