The patch 2/4 (of: add MIPS memory bank adding support) is debatable, please comment it. [RFC 1/4] MIPS: add initial device tree support [RFC 2/4] of: add MIPS memory bank adding support [RFC 3/4] MIPS: qemu-malta: add device tree support [RFC 4/4] MIPS: qemu-malta_defconfig: enable OF support