feat(afp): add a test for Advanced floating-point

This test is to ensure that TFTF is allowed to write the FPCR register
bits to control the floating-point operation when FEAT_AFP is
implemented.

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I21ea288e698bbe706aac55740e28d5f6ccb700dc
diff --git a/include/common/test_helpers.h b/include/common/test_helpers.h
index 0881f00..05ecbb8 100644
--- a/include/common/test_helpers.h
+++ b/include/common/test_helpers.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2021, Arm Limited. All rights reserved.
+ * Copyright (c) 2018-2022, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -273,6 +273,14 @@
 		}								\
 	} while (false)
 
+#define SKIP_TEST_IF_AFP_NOT_SUPPORTED()					\
+	do {									\
+		if (!get_feat_afp_present()) {					\
+			tftf_testcase_printf("ARMv8.7-afp not supported");	\
+			return TEST_RESULT_SKIPPED;				\
+		}								\
+	} while (false)
+
 /* Helper macro to verify if system suspend API is supported */
 #define is_psci_sys_susp_supported()	\
 		(tftf_get_psci_feature_info(SMC_PSCI_SYSTEM_SUSPEND)		\