arm64: dt: OP-TEE for FVP Base RevC

Configures FVP Base RevC with OP-TEE.

With commit 1bf41f5d9b0d ("fvp: add Trusted Services support") in
https://github.com/OP-TEE/build there is support for building running
with the FVP Base RevC model. However, some updates to the DTB passed
to the kernel is missing for the OP-TEE driver to be probed. So fix that
by adding an OP-TEE node in the DTS.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

arch/arm64/boot/dts/arm/fvp-base-revc.dts

@@ -110,6 +110,11 @@
  reg = <0x00000000 0x18000000 0 0x00800000>;
  no-map;
  };
+
+ optee@83000000 {
+ reg = <0x00000000 0x83000000 0 0x01000000>;
+ no-map;
+ };
  };
 
  gic: interrupt-controller@2f000000 {
@@ -244,4 +249,11 @@
  <0 0 44 &gic 0 0 GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
  <0 0 46 &gic 0 0 GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
  };
+
+ firmware {
+ optee {
+ compatible = "linaro,optee-tz";
+ method = "smc";
+ };
+ };
 };