Linux header install hack for elf.h circular dependency

Fix from Arnaud Dovi:

#11

"
I think I have found the root cause of this elf.h issue

Its a circular dependency problem

  __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
      $(Q)$(MAKE) $(build)=scripts build_unifdef

  PHONY += headers_install
  headers_install: __headers
      $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
        $(error Headers not exportable for the $(SRCARCH) architecture))
      $(Q)$(MAKE) $(hdr-inst)=include/uapi
      $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)

In short headers_install depends on archscripts but archscripts compiles a code
with a header elf.h installed by headers_install

Next once you fix this you will realize the headers are copied under linux\elf.h
of the sysroot when the code looks for elf.h
"

patches/linux/3.12/130-disable-archscripts-due-to-elf_h-circular-dep.patch

@@ -0,0 +1,11 @@
+--- linux-3.12.8/Makefile.orig	2014-01-16 00:31:56.000000000 +0100
++++ linux-3.12.8/Makefile	2014-01-20 00:03:25.961403100 +0100
+@@ -906,7 +906,7 @@
+ archscripts:
+
+ PHONY += __headers
+-__headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
++__headers: $(version_h) scripts_basic asm-generic archheaders FORCE
+ 	$(Q)$(MAKE) $(build)=scripts build_unifdef
+
+ PHONY += headers_install_all