[FS#108] ath25: toolchain does not compile

[LEDE Bugs]

The following task is now closed:

FS#108 - ath25: toolchain does not compile
User who did this - john (john)

Reason for closing: Not a bug
Additional comments about closing: looking at the code, using the install target will build all required deps. please use the install target when building the toolchain out of band

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=108