perf/x86/amd/uncore: Pass through error code for initialization failures, instead of -ENODEV

Pass through the appropriate error code when the registration of hotplug
callbacks fail during initialization, instead of returning a blanket -ENODEV.

[ mingo: Updated the changelog. ]

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20231016060743.332051-1-sandipan.das@amd.com