4.4-stable patches

4.4-stable patches

added patches:
	9p-fix-multiple-null-pointer-dereferences.patch
	9p-net-fix-zero-copy-path-in-the-9p-virtio-transport.patch
	9p-virtio-fix-off-by-one-error-in-sg-list-bounds-check.patch
	dm-cache-metadata-save-in-core-policy_hint_size-to-on-disk-superblock.patch
	drm-i915-userptr-reject-zero-user_size.patch
	fs-9p-xattr.c-catch-the-error-of-p9_client_clunk-when-setting-xattr-failed.patch
	iio-ad9523-fix-displayed-phase.patch
	iio-ad9523-fix-return-value-for-ad952x_store.patch
	kthread-tracing-don-t-expose-half-written-comm-when-creating-kthreads.patch
	net-6lowpan-fix-reserved-space-for-single-frames.patch
	net-9p-client.c-version-pointer-uninitialized.patch
	net-9p-trans_fd.c-fix-race-condition-by-flushing-workqueue-before-the-kfree.patch
	net-lan78xx-fix-misplaced-tasklet_schedule-call.patch
	net-mac802154-tx-expand-tailroom-if-necessary.patch
	powerpc-fadump-handle-crash-memory-ranges-array-index-overflow.patch
	powerpc-pseries-fix-endianness-while-restoring-of-r3-in-mce-handler.patch
	spi-davinci-fix-a-null-pointer-dereference.patch
	tracing-blktrace-fix-to-allow-setting-same-value.patch
	tracing-do-not-call-start-stop-functions-when-tracing_on-does-not-change.patch
	uart-fix-race-between-uart_put_char-and-uart_shutdown.patch
	uprobes-use-synchronize_rcu-not-synchronize_sched.patch
	vmw_balloon-do-not-use-2mb-without-batching.patch
	vmw_balloon-fix-inflation-of-64-bit-gfns.patch
	vmw_balloon-fix-vmci-use-when-balloon-built-into-kernel.patch
	vmw_balloon-vmci_doorbell_set-does-not-check-status.patch
	x86-mm-pat-fix-l1tf-stable-backport-for-cpa-2nd-call.patch