toolchain: Broaden the executable loader pattern

Some toolchains will produce executables with an interpreter that is e.g:
ld.so.1 (typically a symbolic link). Due to our current LIBC_SPEC_FILE value,
we would not be able to copy this symbolic link/file over to the rootfs and
executables would fail to load. Extend the search pattern to include all
ld*.so* files that could be needed.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

package/libs/toolchain/Makefile

@@ -164,7 +164,7 @@ define Package/libc/config
 		string
 		prompt "libc shared library files (use wildcards)"
 		depends on EXTERNAL_TOOLCHAIN && PACKAGE_libc
-		default "./lib/ld{-*.so,-linux*.so.*} ./lib/lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}{-*.so,.so.*}"
+		default "./lib/ld{*.so*,-linux*.so.*} ./lib/lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}{-*.so,.so.*}"
 
 	endmenu
 endef