platform: generic-arm64: Include the Hafnium vmapi headers

Bug: 122357282
Change-Id: I7d6b6752d7ceb82f065c8c6c48cc5b956146b6ba

platform/generic-arm64/rules.mk

diff --git a/platform/generic-arm64/rules.mk b/platform/generic-arm64/rules.mk
index a58b0f6..0d115b0 100644
--- a/platform/generic-arm64/rules.mk
+++ b/platform/generic-arm64/rules.mk
@@ -48,6 +48,10 @@
 ifeq (true,$(call TOBOOL,$(HAFNIUM)))
 MODULE_DEFINES += HAFNIUM=1
 MODULE_DEPS += dev/interrupt/hafnium
+MODULE_INCLUDES += \
+	external/hafnium/inc/vmapi \
+	external/hafnium/src/arch/$(HAFNIUM_ARCH)/inc \
+
 else
 MODULE_DEFINES += GIC_VERSION=$(GIC_VERSION)
 MODULE_DEPS += dev/interrupt/arm_gic