test: test the save restore logic for brbcr_el1

This patch tests the save/restore logic by enabling
branch recording at NS-EL2. Additionally this
patch also tests the trap logic when FEAT_FGT is enabled
and a Realm tries to access any FEAT_BRBE related registers.

Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
Change-Id: I176ea6feaf01d42cfd6231dc65a9470da8d1e37c
diff --git a/realm/realm.mk b/realm/realm.mk
index 6281779..d9c1bec 100644
--- a/realm/realm.mk
+++ b/realm/realm.mk
@@ -42,6 +42,7 @@
 	realm_shared_data.c						\
 	realm_simd.c							\
 	realm_mpam.c							\
+	realm_brbe_tests.c						\
 	)
 
 REALM_SOURCES += lib/${ARCH}/cache_helpers.S				\