hw/riscv/sifive_u: Move the uart device tree node under /soc/

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael Clark <mjc@sifive.com>

hw/riscv/sifive_u.c

@@ -194,7 +194,7 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
     g_free(cells);
     g_free(nodename);
 
-    nodename = g_strdup_printf("/uart@%lx",
+    nodename = g_strdup_printf("/soc/uart@%lx",
         (long)memmap[SIFIVE_U_UART0].base);
     qemu_fdt_add_subnode(fdt, nodename);
     qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,uart0");