Split wm8731 and wm8721 drivers. wm8721 can be much simpler since it has no recording...
treee2b704e2e0dd20d8d6d46e6fedc159fafc7fdca4
drwxr-xr-x - apps
drwxr-xr-x - bootloader
drwxr-xr-x - docs
drwxr-xr-x - firmware
drwxr-xr-x - flash
drwxr-xr-x - fonts
drwxr-xr-x - gdb
drwxr-xr-x - manual
drwxr-xr-x - rbutil
drwxr-xr-x - tools
drwxr-xr-x - uisimulator
drwxr-xr-x - utils
drwxr-xr-x - wps