powerpc/nvram: Fix function name in some errors messages.

'nvram_create_os_partition' should be 'nvram_create_partition'.
Use __func__ to have it right, as done elsewhere in this file.

Signed-off-by: Christophe Jaillet <[e-mail]>
Signed-off-by: Michael Ellerman <[e-mail]>

arch/powerpc/kernel/nvram_64.c

···
 	/* Create our OS partition */
 	new_part = kmalloc(sizeof(*new_part), GFP_KERNEL);
 	if (!new_part) {
-		pr_err("nvram_create_os_partition: kmalloc failed\n");
+		pr_err("%s: kmalloc failed\n", __func__);
 		return -ENOMEM;
 	}
 
···
 
 	rc = nvram_write_header(new_part);
 	if (rc <= 0) {
-		pr_err("nvram_create_os_partition: nvram_write_header "
-		       "failed (%d)\n", rc);
+		pr_err("%s: nvram_write_header failed (%d)\n", __func__, rc);
 		kfree(new_part);
 		return rc;
 	}
···
 		free_part->header.checksum = nvram_checksum(&free_part->header);
 		rc = nvram_write_header(free_part);
 		if (rc <= 0) {
-			pr_err("nvram_create_os_partition: nvram_write_header "
-			       "failed (%d)\n", rc);
+			pr_err("%s: nvram_write_header failed (%d)\n",
+			       __func__, rc);
 			return rc;
 		}
 	} else {
···
 	     tmp_index += NVRAM_BLOCK_LEN) {
 		rc = ppc_md.nvram_write(nv_init_vals, NVRAM_BLOCK_LEN, &tmp_index);
 		if (rc <= 0) {
-			pr_err("nvram_create_partition: nvram_write failed (%d)\n", rc);
+			pr_err("%s: nvram_write failed (%d)\n",
+			       __func__, rc);
 			return rc;
 		}
 	}
-	
+
 	return new_part->index + NVRAM_HEADER_LEN;
 }