platform/x86: amd-pmc: Use return code on suspend

Right now the driver will still return success even if the OS_HINT
command failed to send to the SMU. In the rare event of a failure,
the suspend should really be aborted here so that relevant logs
can may be captured.
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Acked-by: NShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20210707141647.8871-1-mario.limonciello@amd.comSigned-off-by: NHans de Goede <hdegoede@redhat.com>

drivers/platform/x86/amd-pmc.c

@@ -353,7 +353,7 @@ static int __maybe_unused amd_pmc_suspend(struct device *dev)
 	if (rc)
 		dev_err(pdev->dev, "suspend failed\n");
 
-	return 0;
+	return rc;
 }
 
 static int __maybe_unused amd_pmc_resume(struct device *dev)