drm/amd: open brace '{' following struct go on the same line

Fix the checkpatch error as open brace '{' following struct should
go on the same line.

Signed-off-by: Ran Sun <sunran001@208suo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: add missing license to some files

The driver is MIT, so add the licenses.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2265
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd: Mark IP_BASE definition as __maybe_unused

Silences 166 compile-time warnings like:

warning: 'UVD0_BASE' defined but not used [-Wunused-const-variable=]
129 | static const struct IP_BASE UVD0_BASE ={ { { { 0x00007800, 0x00007E00, 0, 0, 0 } },
| ^~~~~~~~~
warning: 'UMC0_BASE' defined but not used [-Wunused-const-variable=]
123 | static const struct IP_BASE UMC0_BASE ={ { { { 0x00014000, 0, 0, 0, 0 } },
| ^~~~~~~~~

Signed-off-by: Isabella Basso <isabbasso@riseup.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: add yellow_carp_reg_base_init function for yellow carp (v2)

This patch adds yellow_carp_reg_base_init function to init the register
base for yellow carp.

v2: squash in updates (Alex)

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>