amdgpu: add TA microcode for Raven asics

And update the copyright date on the license.

From internal git commit:
4dc0b4476d3d27312f3c9282b4f783f4185172a0
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

LICENSE.amdgpu

-Copyright (C) 2019  Advanced Micro Devices, Inc. All rights reserved.
+Copyright (C) 2020  Advanced Micro Devices, Inc. All rights reserved.
 
 REDISTRIBUTION: Permission is hereby granted, free of any license fees,
 to any person obtaining a copy of this microcode (the "Software"), to

WHENCE

@@ -2252,6 +2252,7 @@ File: amdgpu/raven_sdma.bin
 File: amdgpu/raven_vcn.bin
 File: amdgpu/raven_dmcu.bin
 File: amdgpu/raven_kicker_rlc.bin
+File: amdgpu/raven_ta.bin
 File: amdgpu/picasso_asd.bin
 File: amdgpu/picasso_ce.bin
 File: amdgpu/picasso_gpu_info.bin
@@ -2263,6 +2264,7 @@ File: amdgpu/picasso_rlc.bin
 File: amdgpu/picasso_rlc_am4.bin
 File: amdgpu/picasso_sdma.bin
 File: amdgpu/picasso_vcn.bin
+File: amdgpu/picasso_ta.bin
 File: amdgpu/raven2_asd.bin
 File: amdgpu/raven2_ce.bin
 File: amdgpu/raven2_gpu_info.bin
@@ -2273,6 +2275,7 @@ File: amdgpu/raven2_pfp.bin
 File: amdgpu/raven2_rlc.bin
 File: amdgpu/raven2_sdma.bin
 File: amdgpu/raven2_vcn.bin
+File: amdgpu/raven2_ta.bin
 File: amdgpu/navi10_asd.bin
 File: amdgpu/navi10_ce.bin
 File: amdgpu/navi10_gpu_info.bin