pci: hotplug and rescan related patches

Most are to make hotplug and rescan path to use optional resource add_size too.

[PATCH 1/8] pci: Make sriov work with hotplug removal
[PATCH 2/8] pci: Calculate right add_size
[PATCH 3/8] pci: Try to assign required+option size at first
[PATCH 4/8] PCI: Using add_list in pcie hotplug path
[PATCH 5/8] PCI: Make rescan bus could increase bridge resource size if needed [PATCH 6/8] PCI: Make pci_rescan_bus handle add_list
[PATCH 7/8] PCI, sysfs: merge dev and bus cpuaffinity show handling [PATCH 8/8] PCI, sys: only create rescan under /sys/.../pci/devices/... for pci bridges

last 5 are resending.

Thanks

Yinghai Lu