Build: New build option to enable combined build for ITS and PS Arch tests.

New option   : -DPSA_API_TEST_STORAGE=ON

Example usage: -DPSA_API_TEST_INTERNAL_TRUSTED_STORAGE=ON
               -DPSA_API_TEST_PROTECTED_STORAGE=ON
               -DPSA_API_TEST_STORAGE=ON

Change-Id: Ib3dbe7d5e7e8281855b7b7c6021820ef2dedfa4b
Signed-off-by: Vinay Kumar Kotegowder <vinaykumar.kotegowder@arm.com>
diff --git a/CommonConfig.cmake b/CommonConfig.cmake
index 045cb1f..e98ac3a 100644
--- a/CommonConfig.cmake
+++ b/CommonConfig.cmake
@@ -347,6 +347,9 @@
 	if (NOT DEFINED PSA_API_TEST_CRYPTO)
 		set(PSA_API_TEST_CRYPTO OFF)
 	endif()
+	if (NOT DEFINED PSA_API_TEST_STORAGE)
+		set(PSA_API_TEST_STORAGE OFF)
+	endif()
 	if (NOT DEFINED PSA_API_TEST_INTERNAL_TRUSTED_STORAGE)
 		set(PSA_API_TEST_INTERNAL_TRUSTED_STORAGE OFF)
 	endif()