drm/amdgpu/soc15: export common IP functions

So they can be driven by IP discovery table.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/soc15.c

@@ -706,7 +706,7 @@ static void soc15_enable_doorbell_aperture(struct amdgpu_device *adev,
 	adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, enable);
 }
 
-static const struct amdgpu_ip_block_version vega10_common_ip_block =
+const struct amdgpu_ip_block_version vega10_common_ip_block =
 {
 	.type = AMD_IP_BLOCK_TYPE_COMMON,
 	.major = 2,

drivers/gpu/drm/amd/amdgpu/soc15.h

@@ -28,6 +28,8 @@
 #include "nbio_v7_0.h"
 #include "nbio_v7_4.h"
 
+extern const struct amdgpu_ip_block_version vega10_common_ip_block;
+
 #define SOC15_FLUSH_GPU_TLB_NUM_WREG		6
 #define SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT	3