drm/amd/pm: Limit jpeg rings as per max for jpeg_v_4_0_3

Since pmfw supports for smuv13_0_6 is limited to 8 jpeg rings per instance,
which is the max for jpeg_v_4_0_3. Limit it to same to avoid out
of bound access.

Fixes: 568199a ("drm/amd/pm: Limit to 8 jpeg rings per instance")
Signed-off-by: Asad Kamal <[email protected]>
Reviewed-by: Lijo Lazar <[email protected]>
Reviewed-by: Hawking Zhang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Asad Kamal

drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c

@@ -2644,7 +2644,7 @@ static ssize_t smu_v13_0_6_get_gpu_metrics(struct smu_context *smu, void **table
 
 	per_inst = smu_v13_0_6_cap_supported(smu, SMU_CAP(PER_INST_METRICS));
 
-	num_jpeg_rings = max_t(u8, adev->jpeg.num_jpeg_rings, 8);
+	num_jpeg_rings = AMDGPU_MAX_JPEG_RINGS_4_0_3;
 	for_each_xcp(adev->xcp_mgr, xcp, i) {
 		amdgpu_xcp_get_inst_details(xcp, AMDGPU_XCP_VCN, &inst_mask);
 		idx = 0;