Merge 3.18.39 into android-3.18

Changes in 3.18.39:
	Revert "MIPS: Reserve nosave data for hibernation"
	Revert "sparc64: Fix numa node distance initialization"
	netfilter: x_tables: speed up jump target validation
	ARM: mvebu: fix HW I/O coherency related deadlocks
	Input: xpad - validate USB endpoint count during probe
	drm/ttm: Make ttm_bo_mem_compat available
	ovl: handle ATTR_KILL*
	ovl: Copy up underlying inode's ->i_mode to overlay inode
	ALSA: hda/realtek - add new pin definition in alc225 pin quirk table
	ALSA: ctl: Stop notification after disconnection
	net: mvneta: set real interrupt per packet for tx_done
	x86/quirks: Add early quirk to reset Apple AirPort card
	posix_cpu_timer: Exit early when process has been reaped
	ALSA: hda - fix use-after-free after module unload
	ALSA: hda: add new AMD PCI IDs with proper driver caps
	ALSA: hda: add AMD Stoney PCI ID with proper driver caps
	media: fix airspy usb probe error path
	mmc: block: fix packed command header endianness
	tty/vt/keyboard: fix OOB access in do_compute_shiftstate()
	ovl: verify upper dentry in ovl_remove_and_whiteout()
	libceph: set 'exists' flag for newly up osd
	libceph: apply new_state before new_up_client on incrementals
	radix-tree: fix radix_tree_iter_retry() for tagged iterators.
	pps: do not crash when failed to register
	x86/quirks: Apply nvidia_bugs quirk only on root bus
	x86/quirks: Reintroduce scanning of secondary buses
	Linux 3.18.39

Change-Id: Idd60191a5c5e0adcbf0dc69f617ba0843d5c08da
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>