proprietary-blobs: sync with TheMuppets

- add discretix
- add widevine
- remove wcd9310

Change-Id: I8cbd6222b0173cc979b526a72e46ea16bd2e9680
proprietary-blobs: use "dsps.*" from modem partition

Change-Id: I17a42d8215070040573cc7444fbb0cbc3a229761