tree 844851d02fb7eb309a4921c1278365e5e4afa759
parent 8e68fab824f031a4f325a0f38e5b409b0a8f11ab
author Bangfei <pbf@google.com> 1688775080 +0000
committer kunb <kunb@google.com> 1689112251 -0700

[HW TOP AST] Add audio source in ast to fix DV.

1. Add audio source /osc in AST, before it was using USB clock. however
   it will cause DV failure since USB clock is off at low power mode.
2. For SMC/ML/Video, still use exisitng sys_clk (100Mhz) and its Val
   signal. VSI eventually will have their own version of ast.sv to
   matcha the exact HW implmentation.

Change-Id: I109dcf09ca67616789ce98e29a8360b1317d5615