Raring update to v3.8.7 stable release

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from Linus' tree or in a minimally
       backported form of that patch. The v3.8.7 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches are in the v3.8.7 stable release:

ASoC: imx-ssi: Fix occasional AC97 reset failure
ASoC: dma-sh7760: Fix compile error
ASoC: spear_pcm: Update to new pcm_new() API
regmap: Initialize `map->debugfs' before regcache
regmap: cache Fix regcache-rbtree sync
MIPS: Fix logic errors in bitops.c
HID: magicmouse: fix race between input_register() and probe()
spi/s3c64xx: modified error interrupt handling and init
spi/mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts
gpio: stmpe: pass DT node to irqdomain
UBIFS: make space fixup work in the remount case
reiserfs: Fix warning and inode leak when deleting inode with xattrs
ALSA: hda - bug fix on return value when getting HDMI ELD info
ALSA: hda - Enabling Realtek ALC 671 codec
ALSA: hda - fix typo in proc output
drm/nouveau: fix handling empty channel list in ioctl's
drm/i915: Be sure to turn hsync/vsync back on at crt enable (v2)
drm: correctly restore mappings if drm_open fails
Revert "drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR"
mm: prevent mmap_cache race in find_vma()
EISA/PCI: Init EISA early, before PNP
EISA/PCI: Fix bus res reference
ixgbe: fix registration order of driver and DCA nofitication
libata: Use integer return value for atapi_command_packet_set
libata: Set max sector to 65535 for Slimtype DVD A DS8A8SH drive
MIPS: Unbreak function tracer for 64-bit kernel.
alpha: Add irongate_io to PCI bus resources
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI/PM: Disable runtime PM of PCIe ports
ata_piix: Fix DVD not dectected at some Haswell platforms
ftrace: Consistently restore trace function on sysctl enabling
powerpc: pSeries_lpar_hpte_remove fails from Adjunct partition being performed before the ANDCOND test
mwifiex: limit channel number not to overflow memory
mac80211: fix remain-on-channel cancel crash
x86: remove the x32 syscall bitmask from syscall_get_nr()
hwspinlock: fix __hwspin_lock_request error path
remoteproc/ste: fix memory leak on shutdown
remoteproc: fix error path of handle_vdev
remoteproc: fix FW_CONFIG typo
spinlocks and preemption points need to be at least compiler barriers
crypto: ux500 - add missing comma
crypto: gcm - fix assumption that assoc has one segment
drm/mgag200: Index 24 in extended CRTC registers is 24 in hex, not decimal.
block: avoid using uninitialized value in from queue_var_store
SUNRPC: Remove extra xprt_put()
NFSv4: Fix a memory leak in nfs4_discover_server_trunking
NFSv4/4.1: Fix bugs in nfs4[01]_walk_client_list
drm/i915: Fix build failure
x86: Fix rebuild with EFI_STUB enabled
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
thermal: return an error on failure to register thermal class
msi-wmi: Fix memory leak
cpufreq: exynos: Get booting freq value in exynos_cpufreq_init
ARM: EXYNOS: Fix crash on soft reset on EXYNOS5440
drm/i915: add quirk to invert brightness on eMachines G725
drm/i915: add quirk to invert brightness on eMachines e725
drm/i915: add quirk to invert brightness on Packard Bell NCL20
r8169: fix auto speed down issue
vfio-pci: Fix possible integer overflow
NFSv4: Doh! Typo in the fix to nfs41_walk_client_list
can: gw: use kmem_cache_free() instead of kfree()
mwifiex: complete last internal scan
Revert "tty/8250_pnp: serial port detection regression since v3.7"
Linux 3.8.7