Merge 3.18.38 into android-3.18

Changes in 3.18.38:
	ALSA: echoaudio: Fix memory allocation
	ipr: Clear interrupt on croc/crocodile when running with LSI
	ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift()
	x86/amd_nb: Fix boot crash on non-AMD systems
	block: fix use-after-free in sys_ioprio_get()
	ALSA: timer: Fix negative queue usage by racy accesses
	qeth: delete napi struct when removing a qeth device
	MIPS: Fix page table corruption on THP permission changes.
	xenbus: Add proper handling of XS_ERROR from Xenbus for transactions.
	xenbus: don't BUG() on user mode induced condition
	Revert "ecryptfs: forbid opening files without mmap handler"
	xenbus: don't bail early from xenbus_dev_request_and_reply()
	xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7
	ecryptfs: don't allow mmap when the lower fs doesn't support it
	powerpc: Fix build break due to missing PPC_FEATURE2_HTM_NOSC
	4.1.28 Fix bad backport of 8f182270 "mm/swap.c: flush lru pvecs on compound page arrival"
	Linux 3.18.38

Change-Id: I1db05ce663225decb861518a519d2291c56e4e37
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>