drm/amd: Convert SMUv13 microcode to use `amdgpu_ucode_ip_version_decode`

The special case for the one dGPU has been moved into
`amdgpu_ucode_ip_version_decode`, so simplify this code.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c

@@ -88,7 +88,6 @@ static const int link_speed[] = {25, 50, 80, 160};
 int smu_v13_0_init_microcode(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
-	const char *chip_name;
 	char fw_name[30];
 	char ucode_prefix[30];
 	int err = 0;
@@ -100,16 +99,9 @@ int smu_v13_0_init_microcode(struct smu_context *smu)
 	if (amdgpu_sriov_vf(adev))
 		return 0;
 
-	switch (adev->ip_versions[MP1_HWIP][0]) {
-	case IP_VERSION(13, 0, 2):
-		chip_name = "aldebaran_smc";
-		break;
-	default:
-		amdgpu_ucode_ip_version_decode(adev, MP1_HWIP, ucode_prefix, sizeof(ucode_prefix));
-		chip_name = ucode_prefix;
-	}
+	amdgpu_ucode_ip_version_decode(adev, MP1_HWIP, ucode_prefix, sizeof(ucode_prefix));
 
-	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s.bin", chip_name);
+	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s.bin", ucode_prefix);
 
 	err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
 	if (err)