mknnk, nnui: kernel build scripts

- mknnk: invoke "make" for making a NanoNote kernel
- nnui: make an uImage for the NanoNote

bin/mknnk

@@ -0,0 +1,3 @@
+#!/bin/sh -e
+PATH=$PATH:../u-boot/tools
+make ARCH=mips CROSS_COMPILE=mipsel-openwrt-linux- "$@"

bin/nnui

@@ -0,0 +1,8 @@
+#!/bin/sh -ex
+PATH=$PATH:../u-boot/tools
+mknnk -j4 vmlinux.bin
+gzip -9 -f arch/mips/boot/vmlinux.bin
+mkimage -A mips -O linux -T kernel -a 0x80010000 \
+  -C gzip -e 0x`mipsel-openwrt-linux-nm vmlinux | \
+  grep " kernel_entry" | cut -f1 -d ' '` \
+  -n 'Ben NanoNote Linux Kernel' -d arch/mips/boot/vmlinux.bin.gz uImage