fix(gicv3): move invocation of gicv3_get_multichip_base function

gicv3_get_multichip_base in case of GICV3_IMPL_GIC600_MULTICHIP flag
being set, only works if the id belongs to SPI range.
Moving invocation of the function after confirming that the
intr_num belongs to SPI range.

Signed-off-by: sahil <sahil@arm.com>
Change-Id: I429eb473a7aeccb30309b1ffa5994663393ba0a2

drivers/arm/gic/v3/gicv3_helpers.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2022, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved.
  * Copyright (c) 2023, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
@@ -223,13 +223,16 @@ unsigned int gicv3_secure_spis_config_props(uintptr_t gicd_base,
 		current_prop = &interrupt_props[i];
 
 		unsigned int intr_num = current_prop->intr_num;
-		uintptr_t multichip_gicd_base = gicv3_get_multichip_base(intr_num, gicd_base);
+		uintptr_t multichip_gicd_base;
 
 		/* Skip SGI, (E)PPI and LPI interrupts */
 		if (!IS_SPI(intr_num)) {
 			continue;
 		}
 
+		multichip_gicd_base =
+			gicv3_get_multichip_base(intr_num, gicd_base);
+
 		/* Configure this interrupt as a secure interrupt */
 		gicd_clr_igroupr(multichip_gicd_base, intr_num);