powerpc: move from strlcpy with unused retval to strscpy

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Link: https://lore.kernel.org/r/20220818205946.6336-1-wsa+renesas@sang-engineering.com

arch/powerpc/kernel/dt_cpu_ftrs.c

@@ -1099,7 +1099,7 @@ static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
 
 	prop = of_get_flat_dt_prop(node, "display-name", NULL);
 	if (prop && strlen((char *)prop) != 0) {
-		strlcpy(dt_cpu_name, (char *)prop, sizeof(dt_cpu_name));
+		strscpy(dt_cpu_name, (char *)prop, sizeof(dt_cpu_name));
 		cur_cpu_spec->cpu_name = dt_cpu_name;
 	}
 

arch/powerpc/platforms/powernv/idle.c

@@ -1411,7 +1411,7 @@ static int __init pnv_parse_cpuidle_dt(void)
 		goto out;
 	}
 	for (i = 0; i < nr_idle_states; i++)
-		strlcpy(pnv_idle_states[i].name, temp_string[i],
+		strscpy(pnv_idle_states[i].name, temp_string[i],
 			PNV_IDLE_NAME_LEN);
 	nr_pnv_idle_states = nr_idle_states;
 	rc = 0;

arch/powerpc/platforms/powernv/pci-ioda.c

@@ -67,7 +67,7 @@ void pe_level_printk(const struct pnv_ioda_pe *pe, const char *level,
 	vaf.va = &args;
 
 	if (pe->flags & PNV_IODA_PE_DEV)
-		strlcpy(pfix, dev_name(&pe->pdev->dev), sizeof(pfix));
+		strscpy(pfix, dev_name(&pe->pdev->dev), sizeof(pfix));
 	else if (pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL))
 		sprintf(pfix, "%04x:%02x     ",
 			pci_domain_nr(pe->pbus), pe->pbus->number);

arch/powerpc/platforms/pseries/hvcserver.c

@@ -176,7 +176,7 @@ int hvcs_get_partner_info(uint32_t unit_address, struct list_head *head,
 			= (unsigned int)last_p_partition_ID;
 
 		/* copy the Null-term char too */
-		strlcpy(&next_partner_info->location_code[0],
+		strscpy(&next_partner_info->location_code[0],
 			(char *)&pi_buff[2],
 			sizeof(next_partner_info->location_code));