amdgpu: update vega20 firmware

From internal git commit:
82c3ef8fd13470434a51b8323a7b33ede62e5c1a

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/amdgpu/vega20_asd.bin b/amdgpu/vega20_asd.bin
index 7909e61..38fed71 100644
--- a/amdgpu/vega20_asd.bin
+++ b/amdgpu/vega20_asd.bin
Binary files differ