fix mips64el toolchain building

toolchain/gcc/patches/4.7.3/musl-mips64.patch

@@ -0,0 +1,14 @@
+diff -Nur gcc-4.7.3.orig/gcc/config/mips/linux64.h gcc-4.7.3/gcc/config/mips/linux64.h
+--- gcc-4.7.3.orig/gcc/config/mips/linux64.h	2011-07-19 20:00:27.000000000 +0200
++++ gcc-4.7.3/gcc/config/mips/linux64.h	2013-09-17 09:24:36.000000000 +0200
+@@ -28,6 +28,9 @@
+ #define GLIBC_DYNAMIC_LINKERN32 "/lib32/ld.so.1"
+ #define UCLIBC_DYNAMIC_LINKERN32 "/lib32/ld-uClibc.so.0"
+ #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-mips.so.1"
++#define MUSL_DYNAMIC_LINKERN32 "/lib/ld-musl-mips.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-mips.so.1"
+ #define GNU_USER_DYNAMIC_LINKERN32 \
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \
+-			 BIONIC_DYNAMIC_LINKERN32)
++			 BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)