add linker script for sh

package/glibc/files/libc.so.sh4

@@ -0,0 +1,5 @@
+/* GNU ld script
+   Use the shared library, but some functions are only in
+   the static library, so try that secondarily.  */
+OUTPUT_FORMAT(elf32-sh-linux)
+GROUP ( /lib/libc.so.6 /usr/lib/libc_nonshared.a  AS_NEEDED ( /lib/ld-linux.so.2 ) )