feat(tc): add uart node in spmc manifest

The device memory described in the SP manifest has to be described in
the SPMC manifest as well. In this case, OP-TEE includes this UART
device in its SP manifest. Hence, this commit adds it in the SPMC
manifest.

Change-Id: I0f84d7b105c072dd021f0f2d215adf6bcdf5f98f
Signed-off-by: Davidson K <davidson.kumaresan@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
diff --git a/plat/arm/board/tc/fdts/tc_spmc_manifest.dtsi b/plat/arm/board/tc/fdts/tc_spmc_manifest.dtsi
index dc6c7d8..a6b63a1 100644
--- a/plat/arm/board/tc/fdts/tc_spmc_manifest.dtsi
+++ b/plat/arm/board/tc/fdts/tc_spmc_manifest.dtsi
@@ -112,4 +112,9 @@
 		device_type = "device-memory";
 		reg = <0x0 0x25000000 0x0 0x10000>; /* For cactus tertiary dummy device. */
 	};
+
+	s_uart {
+		device_type = "device-memory";
+		reg = <0x0 PLAT_ARM_BOOT_UART_BASE 0x0 0x01000>;
+	};
 };