UBUNTU: SAUCE: xhci: Fix soft lockup in xhci_pci_probe path when XHCI_STATE_HALTED

UBUNTU: SAUCE: xhci: Fix soft lockup in xhci_pci_probe path when XHCI_STATE_HALTED

Commit 27a41a83ec54 ("xhci: Cleanup only when releasing primary hcd")
causes a soft lockup at boot when XHCI_STATE_HALTED, preventing
VirtualBox 5.1.x from booting if USB3.0 is enabled.

Revert to allowing xhci_irq to handle the interrupt when
XHCI_STATE_HALTED but not XHCI_STATE_DYING.

Fixes: 27a41a83ec54 ("xhci: Cleanup only when releasing primary hcd")
BugLink: https://bugs.launchpad.net/bugs/1604058
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Cc: <stable@vger.kernel.org> #v4.3+
Cc: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>