Use better test macro

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/tests/suites/test_suite_mpi.function b/tests/suites/test_suite_mpi.function
index bfadde9..f167381 100644
--- a/tests/suites/test_suite_mpi.function
+++ b/tests/suites/test_suite_mpi.function
@@ -777,7 +777,7 @@
     size_t copy_limbs = CHARS_TO_LIMBS( input_len );
     size_t len = limbs * sizeof( mbedtls_mpi_uint );
 
-    TEST_ASSERT( limbs_X == limbs_Y );
+    TEST_EQUAL( limbs_X, limbs_Y );
     TEST_ASSERT( copy_limbs <= limbs );
 
     ASSERT_ALLOC( X, len );
@@ -836,7 +836,7 @@
     size_t copy_limbs = CHARS_TO_LIMBS( input_len );
     size_t len = limbs * sizeof( mbedtls_mpi_uint );
 
-    TEST_ASSERT( limbs_X == limbs_Y );
+    TEST_EQUAL( limbs_X, limbs_Y );
     TEST_ASSERT( copy_limbs <= limbs );
 
     ASSERT_ALLOC( tmp_X, len );
@@ -912,7 +912,7 @@
     size_t copy_limbs = CHARS_TO_LIMBS( input_len );
     size_t len = limbs * sizeof( mbedtls_mpi_uint );
 
-    TEST_ASSERT( limbs_X == limbs_Y );
+    TEST_EQUAL( limbs_X, limbs_Y );
     TEST_ASSERT( copy_limbs <= limbs );
 
     ASSERT_ALLOC( X, len );
@@ -986,7 +986,7 @@
     size_t copy_limbs = CHARS_TO_LIMBS( input_len );
     size_t len = limbs * sizeof( mbedtls_mpi_uint );
 
-    TEST_ASSERT( limbs_X == limbs_Y );
+    TEST_EQUAL( limbs_X, limbs_Y );
     TEST_ASSERT( copy_limbs <= limbs );
 
     ASSERT_ALLOC( tmp_X, len );