hdat: Add P9 compatible property

Add p9 compatible property for various nodes.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
[oohall@gmail.com: remove ibm,power9-nx compat]
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

hdata/spira.c

@@ -258,6 +258,10 @@ static struct dt_node *add_xscom_node(uint64_t base, uint32_t hw_id,
 		dt_add_property_strings(node, "compatible",
 					"ibm,xscom", "ibm,power8-xscom");
 		break;
+	case proc_gen_p9:
+		dt_add_property_strings(node, "compatible",
+					"ibm,xscom", "ibm,power9-xscom");
+		break;
 	default:
 		dt_add_property_strings(node, "compatible", "ibm,xscom");
 	}
@@ -578,6 +582,9 @@ static void add_chiptod_node(unsigned int chip_id, int flags)
 	case proc_gen_p8:
 		compat_str = "ibm,power8-chiptod";
 		break;
+	case proc_gen_p9:
+		compat_str = "ibm,power9-chiptod";
+		break;
 	default:
 		return;
 	}