Add backports for ath6kl

Change-Id: I55979fe951b233f3b8a6c0c28868111e27b4aa3c
add asserts, mass storage, libnl_2, more blobs

Change-Id: Ia835a1d3de6a42212962dbe9ec043f2e99851c1b
proprietary-files: make libsrsprocessing a prebuilt

Change-Id: Ib5467774018b5e0db2e7b5c12194a2c141425d69