Merge 3.18.75 into android-3.18

Changes in 3.18.75
	usb: gadget: inode.c: fix unbalanced spin_lock in ep0_write
	USB: gadgetfs: Fix crash caused by inadequate synchronization
	USB: gadgetfs: fix copy_to_user while holding spinlock
	usb-storage: unusual_devs entry to fix write-access regression for Seagate external drives
	usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe
	usb: renesas_usbhs: fix usbhsf_fifo_clear() for RX direction
	ALSA: usb-audio: Check out-of-bounds access by corrupted buffer descriptor
	usb: pci-quirks.c: Corrected timeout values used in handshake
	USB: dummy-hcd: fix connection failures (wrong speed)
	USB: dummy-hcd: fix infinite-loop resubmission bug
	USB: devio: Don't corrupt user memory
	USB: uas: fix bug in handling of alternate settings
	usb: Increase quirk delay for USB devices
	USB: fix out-of-bounds in usb_set_configuration
	xhci: fix finding correct bus_state structure for USB 3.1 hosts
	iio: ad_sigma_delta: Implement a dedicated reset function
	staging: iio: ad7192: Fix - use the dedicated reset function avoiding dma from stack.
	iio: core: Return error for failed read_reg
	iio: ad7793: Fix the serial interface reset
	iio: adc: mcp320x: Fix oops on module unload
	uwb: properly check kthread_run return value
	uwb: ensure that endpoint is interrupt
	lsm: fix smack_inode_removexattr and xattr_getsecurity memleak
	ALSA: usx2y: Suppress kernel warning at page allocation failures
	driver core: platform: Don't read past the end of "driver_override" buffer
	HID: i2c-hid: allocate hid buffers for real worst case
	drm/i915/bios: ignore HDMI on port A
	ext4: only call ext4_truncate when size <= isize
	fs/super.c: fix race between freeze_super() and thaw_super()
	ext4: fix data corruption for mmap writes
	ext4: Don't clear SGID when inheriting ACLs
	ext4: validate s_first_meta_bg at mount time
	ext4: fix fencepost in s_first_meta_bg validation
	Linux 3.18.75

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