generic: add linux 4.1 support

Boot tested: http://pastebin.com/L6aAb9xj

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
[jogo:
  update to 4.1 final
  add patches added since submission
  delete patches applied in later rcs
  restore commit messages in 220-gc-sections and 304-mips_disable_fpu
  fix 050-backport_netfilter_rtcache to match new API
  update inlined dma ops with upstream changes
  add missing config symbols
  enabled CONFIG_MULTIUSER
  update kmod defintions for 4.1
]
Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 46112

target/linux/generic/patches-4.1/960-decompress_unlzo_fix.patch

@@ -0,0 +1,23 @@
+--- /dev/null
++++ b/include/linux/decompress/unlzo_mm.h
+@@ -0,0 +1,10 @@
++#ifndef UNLZO_MM_H
++#define UNLZO_MM_H
++
++#ifdef STATIC
++#define INIT
++#else
++#define INIT __init
++#endif
++
++#endif
+--- a/lib/decompress_unlzo.c
++++ b/lib/decompress_unlzo.c
+@@ -38,6 +38,7 @@
+ 
+ #include <linux/types.h>
+ #include <linux/lzo.h>
++#include <linux/decompress/unlzo_mm.h>
+ #include <linux/decompress/mm.h>
+ 
+ #include <linux/compiler.h>