Builtin cmdline is copied by arch_mem_init().
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/812/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>