4.4-stable patches

4.4-stable patches

added patches:
	arm-dts-at91-sama5d4-fix-pinctrl-muxing.patch
	ath9k-fix-kernel-null-pointer-dereference-during-ath_reset_internal.patch
	btrfs-clear-defrag-status-of-a-root-if-starting-transaction-fails.patch
	ext4-correct-the-cache_nr-in-tracepoint-ext4_es_shrink_exit.patch
	ext4-fix-avefreec-in-find_group_orlov.patch
	ext4-fix-kernel-infoleak-via-ext4_extent_header.patch
	ext4-remove-check-for-zero-nr_to_scan-in-ext4_es_scan.patch
	fuse-check-connected-before-queueing-on-fpq-io.patch
	iio-ltr501-ltr501_read_ps-add-missing-endianness-conversion.patch
	iio-ltr501-ltr559-fix-initialization-of-ltr501_als_contr.patch
	iio-ltr501-mark-register-holding-upper-8-bits-of-als_data-0-1-and-ps_data-as-volatile-too.patch
	s390-cio-dont-call-css_wait_for_slow_path-inside-a-lock.patch
	seq_buf-make-trace_seq_putmem_hex-support-data-longer-than-8.patch
	serial_cs-add-option-international-gsm-ready-56k-isdn-modem.patch
	ssb-sdio-don-t-overwrite-const-buffer-if-block_write-fails.patch
	sunrpc-fix-the-batch-tasks-count-wraparound.patch
	sunrpc-should-wake-up-the-privileged-task-firstly.patch