Merge pull request #160 in SW_PON/linux from UGW_SW-18320-Ingegrate-LEDE-generic-patches to xrx500

* commit 'c7f3673b32897465fee22a551cc071731dd7a5d7': (98 commits)
  bridge: port isolate
  bridge: only accept EAP locally
  lzma: de-bloat the lzma library used by jffs2
  hack: kernel: add generic image_cmdline hack to MIPS targets
  rfkill: add fake rfkill support
  kernel: prevent cryptomgr from pulling in useless extra dependencies for tests that are not run
  kernel: move regmap bloat out of the kernel image if it is only being used in modules
  kconfig: owrt specific dependencies
  hack: net: remove bogus netfilter dependencies
  use the openwrt lzma options for now
  kernel: fix linux/spi/spidev.h portability issues with musl
  linux-3.6: fix portability of some includes files in tools/ used on the host
  kernel: fix linux 4.9 host tools portability issues
  kernel: do not build modules.order
  build: add a hack for removing non-essential module info
  kernel: strip unnecessary symbol table information from kernel modules
  serial: do not accept sysrq characters via serial port
  libata: add ledtrig support
  usb: Remove annoying warning about bogus URB
  usb: Remove annoying warning about bogus URB
  ...