mips: use common of_flat_dt_get_machine_name

Convert mips to use the common of_flat_dt_get_machine_name function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Acked-by: NJohn Crispin <blogic@openwrt.org>

arch/mips/kernel/prom.c

@@ -47,24 +47,11 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 	return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
 }
 
-int __init early_init_dt_scan_model(unsigned long node,	const char *uname,
-				    int depth, void *data)
-{
-	if (!depth) {
-		char *model = of_get_flat_dt_prop(node, "model", NULL);
-
-		if (model)
-			mips_set_machine_name(model);
-	}
-	return 0;
-}
-
 void __init __dt_setup_arch(struct boot_param_header *bph)
 {
 	if (!early_init_dt_scan(bph))
 		return;
 
-	/* try to load the mips machine name */
-	of_scan_flat_dt(early_init_dt_scan_model, NULL);
+	mips_set_machine_name(of_flat_dt_get_machine_name());
 }
 #endif