fix(fvp): op-tee sp manifest doesn't map gicd

Following I2d274fa897171807e39b0ce9c8a28824ff424534:
Remove GICD registers S2 mapping from OP-TEE partition when it runs in a
secure partition on top of Hafnium.
The partition is not meant to access the GIC directly but use the
Hafnium provided interfaces.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I1a38101f6ae9911662828734a3c9572642123f32

plat/arm/board/fvp/fdts/optee_sp_manifest.dts

@@ -40,11 +40,5 @@
 			pages-count = <1>;
 			attributes = <0x3>; /* read-write */
 		};
-
-		gicd {
-			base-address = <0x00000000 0x2f000000>;
-			pages-count = <16>;
-			attributes = <0x3>; /* read-write */
-		};
 	};
 };