Incorrect build instructions

In https://github.com/atwilc3000/driver/wiki it is said:
```
Go to the wireless directory: cd /kernel/drivers/wireless
```

It should be ```drivers/__net__/wireless```.

Moreover in up-to-date Linux kernel there's already ```atmel``` folder in ```drivers/net/wireless```.
See http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/net/wireless/atmel