platform/x86/intel/tpmi/plr: Make the file domain<n>/status writeable

The file sys/kernel/debug/tpmi-<n>/plr/domain<n>/status has store and show
callbacks. Make it writeable.

Fixes: 811f67c ("platform/x86/intel/tpmi: Add new auxiliary driver for performance limits")
Signed-off-by: Ricardo Neri <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Ilpo Järvinen <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>

Author: ricardon

drivers/platform/x86/intel/plr_tpmi.c

@@ -316,7 +316,7 @@ static int intel_plr_probe(struct auxiliary_device *auxdev, const struct auxilia
 		snprintf(name, sizeof(name), "domain%d", i);
 
 		dentry = debugfs_create_dir(name, plr->dbgfs_dir);
-		debugfs_create_file("status", 0444, dentry, &plr->die_info[i],
+		debugfs_create_file("status", 0644, dentry, &plr->die_info[i],
 				    &plr_status_fops);
 	}