arch_topology: Silence early cacheinfo errors when non-existent

Architectures which do not have cacheinfo such as ARM 32-bit would spit
out the following during boot:

 Early cacheinfo failed, ret = -2

Treat -ENOENT specifically to silence this error since it means that the
platform does not support reporting its cache information.

Fixes: 3fcbf1c ("arch_topology: Fix cache attributes detection in the CPU hotplug path")
Tested-by: Geert Uytterhoeven <[email protected]>
Tested-by: Michael Walle <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Reviewed-by: Conor Dooley <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: ffainelli

drivers/base/arch_topology.c

@@ -735,7 +735,7 @@ void update_siblings_masks(unsigned int cpuid)
 	int cpu, ret;
 
 	ret = detect_cache_attributes(cpuid);
-	if (ret)
+	if (ret && ret != -ENOENT)
 		pr_info("Early cacheinfo failed, ret = %d\n", ret);
 
 	/* update core and thread sibling masks */