Merge 4.9.107 into android-4.9

Changes in 4.9.107
	arm64: lse: Add early clobbers to some input/output asm operands
	powerpc/64s: Clear PCR on boot
	USB: serial: cp210x: use tcflag_t to fix incompatible pointer type
	Revert "pinctrl: msm: Use dynamic GPIO numbering"
	xfs: detect agfl count corruption and reset agfl
	Revert "ima: limit file hash setting by user to fix and log modes"
	Input: elan_i2c_smbus - fix corrupted stack
	tracing: Fix crash when freeing instances with event triggers
	selinux: KASAN: slab-out-of-bounds in xattr_getsecurity
	cfg80211: further limit wiphy names to 64 bytes
	dma-buf: remove redundant initialization of sg_table
	rtlwifi: rtl8192cu: Remove variable self-assignment in rf.c
	ASoC: Intel: sst: remove redundant variable dma_dev_name
	platform/chrome: cros_ec_lpc: remove redundant pointer request
	x86/amd: revert commit 944e0fc5
	xen: set cpu capabilities from xen_start_kernel()
	x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen
	tcp: avoid integer overflows in tcp_rcv_space_adjust()
	scsi: ufs: fix failure to read the string descriptor
	scsi: ufs: refactor device descriptor reading
	scsi: ufs: Factor out ufshcd_read_desc_param
	arm64: Add hypervisor safe helper for checking constant capabilities
	arm64/cpufeature: don't use mutex in bringup path
	powerpc/rfi-flush: Move out of HARDLOCKUP_DETECTOR #ifdef
	powerpc/pseries: Support firmware disable of RFI flush
	powerpc/powernv: Support firmware disable of RFI flush
	powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code
	powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again
	powerpc/rfi-flush: Always enable fallback flush on pseries
	powerpc/rfi-flush: Differentiate enabled and patched flush types
	powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration
	powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags
	powerpc: Add security feature flags for Spectre/Meltdown
	powerpc/pseries: Set or clear security feature flags
	powerpc/powernv: Set or clear security feature flags
	powerpc/64s: Move cpu_show_meltdown()
	powerpc/64s: Enhance the information in cpu_show_meltdown()
	powerpc/powernv: Use the security flags in pnv_setup_rfi_flush()
	powerpc/pseries: Use the security flags in pseries_setup_rfi_flush()
	powerpc/64s: Wire up cpu_show_spectre_v1()
	powerpc/64s: Wire up cpu_show_spectre_v2()
	powerpc/pseries: Fix clearing of security feature flags
	powerpc: Move default security feature flags
	powerpc/pseries: Restore default security feature flags on setup
	powerpc/64s: Fix section mismatch warnings from setup_rfi_flush()
	powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit
	net/mlx4_en: fix potential use-after-free with dma_unmap_page
	iio:kfifo_buf: check for uint overflow
	MIPS: ptrace: Fix PTRACE_PEEKUSR requests for 64-bit FGRs
	MIPS: prctl: Disallow FRE without FR with PR_SET_FP_MODE requests
	scsi: scsi_transport_srp: Fix shost to rport translation
	stm class: Use vmalloc for the master map
	hwtracing: stm: fix build error on some arches
	IB/core: Fix error code for invalid GID entry
	drm/psr: Fix missed entry in PSR setup time table.
	drm/i915: Disable LVDS on Radiant P845
	sparc64: Fix build warnings with gcc 7.
	fix io_destroy()/aio_complete() race
	mm: fix the NULL mapping case in __isolate_lru_page()
	sparc64: Don't clibber fixed registers in __multi4.
	serial: pl011: add console matching function
	Linux 4.9.107

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