add musl sh patch

toolchain/gcc/patches/4.8.2/musl-sh.patch

@@ -0,0 +1,11 @@
+diff -Nur gcc-4.8.2.orig/gcc/config/sh/linux.h gcc-4.8.2/gcc/config/sh/linux.h
+--- gcc-4.8.2.orig/gcc/config/sh/linux.h	2013-03-14 04:01:53.000000000 +0100
++++ gcc-4.8.2/gcc/config/sh/linux.h	2014-03-01 11:33:10.000000000 +0100
+@@ -44,6 +44,7 @@
+ #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-sh.so.1"
+ 
+ #undef SUBTARGET_LINK_EMUL_SUFFIX
+ #define SUBTARGET_LINK_EMUL_SUFFIX "_linux"