[MIPS] Adding binutils changes for MIPS/NaCl architecture.

binutils-2.20/bfd/config.bfd

 # config.bfd
 # Convert a canonical host type into a BFD host type.
 # Set shell variable targ to canonical target name, and run
 # using ``. config.bfd''.
 # Sets the following shell variables:
 #  targ_defvec          Default vector for this target
 #  targ_selvecs         Vectors to build for this target
 #  targ64_selvecs       Vectors to build if --enable-64-bit-bfd is given
 #                       or if host is 64 bit.
 #  targ_archs           Architectures for this target
@@ skipping 882 matching lines @@
     targ_selvecs="bfd_elf32_tradlittlemips_vec bfd_elf64_tradbigmips_vec bfd_elf64_tradlittlemips_vec ecoff_big_vec ecoff_little_vec"
     ;;
   mips*-dec-* | mips*el-*-ecoff*)
     targ_defvec=ecoff_little_vec
     targ_selvecs=ecoff_big_vec
     ;;
   mips*-*-ecoff*)
     targ_defvec=ecoff_big_vec
     targ_selvecs=ecoff_little_vec
     ;;
+  mips*el-*-nacl)
+    targ_defvec=bfd_elf32_tradlittlemips_nacl_vec
+    targ_selvecs="bfd_elf32_tradlittlemips_vec"
+    ;;
 #ifdef BFD64
   mips*-*-irix6*)
     targ_defvec=bfd_elf32_nbigmips_vec
     targ_selvecs="bfd_elf32_nlittlemips_vec bfd_elf32_bigmips_vec bfd_elf32_littlemips_vec bfd_elf64_bigmips_vec bfd_elf64_littlemips_vec"
     want64=true
     ;;
 #endif
   mips*-*-irix5*)
     targ_defvec=bfd_elf32_bigmips_vec
     targ_selvecs="bfd_elf32_littlemips_vec ecoff_big_vec ecoff_little_vec"
@@ skipping 684 matching lines @@
     targ_selvecs="${targ_selvecs} bfd_elf32_little_generic_vec bfd_elf32_big_generic_vec"
     ;;
 esac
 
 # If we support Intel L1OM target, then add support for bfd_l1om_arch.
 case "${targ_defvec} ${targ_selvecs}" in
   *bfd_elf64_l1om_vec*)
     targ_archs="$targ_archs bfd_l1om_arch"
     ;;
 esac