Add Buffalo wzr-hp-ag300h build config
Merge pull request #12 from seanbruno/master

Add Buffalo wzr-hp-ag300h build config
r271241 head moved libnv to /lib
Be more obvious that we are padding to 1 MegaByte boundaries in the image
creation bits by using the shorthand of 1M
Use a more bmake friendly mechanism to ensure that the mktplinkfw
binary is built