Add multithreaded DynamIQ dts file

The new dts file overrides the MPIDR values of the processing elements
which were defined in the common dtsi file. The new dts file defines
four cores in a single cluster, each core having two threads.
Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I0f8d8d250289077aee11eede4508871bb61dbc88

fdts/fvp-base-gicv3-psci-dynamiq-2t.dts

+/*
+ * Copyright (c) 2019, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/dts-v1/;
+
+/include/ "fvp-base-gicv3-psci-common.dtsi"
+
+&CPU0 {
+	reg = <0x0 0x0>;
+};
+
+&CPU1 {
+	reg = <0x0 0x1>;
+};
+
+&CPU2 {
+	reg = <0x0 0x100>;
+};
+
+&CPU3 {
+	reg = <0x0 0x101>;
+};
+
+&CPU4 {
+	reg = <0x0 0x200>;
+};
+
+&CPU5 {
+	reg = <0x0 0x201>;
+};
+
+&CPU6 {
+	reg = <0x0 0x300>;
+};
+
+&CPU7 {
+	reg = <0x0 0x301>;
+};