Power management and ACPI fixes for v4.0-rc5

 - Revert a recent PCI commit related to IRQ resources management
   that introduced a regression for drivers attempting to bind to
   devices whose previous drivers did not balance pci_enable_device()
   and pci_disable_device() as expected (Rafael J Wysocki).

 - Fix a deadlock in at91_rtc_interrupt() introduced by a typo in a
   recent commit related to wakeup interrupt handling (Dan Carpenter).

 - Allow the power capping RAPL (Running-Average Power Limit) driver
   to use different energy units for domains within one CPU package
   which is necessary to handle Intel Haswell EP processors correctly
   (Jacob Pan).

 - Improve the cpuidle mvebu driver's handling of Armada XP SoCs by
   updating the target residency and exit latency numbers for those
   chips (Sebastien Rannou).

 - Prevent the cpuidle mvebu driver from calling cpu_pm_enter() twice
   in a row before cpu_pm_exit() is called on the same CPU which
   breaks the core's assumptions regarding the usage of those
   functions (Gregory Clement).

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