refactor(ff-a): partition info test functions

Move common ffa_partition_info_get functions to the spm_common.
Secure test target now supports both sending and receiving direct
messages.
Changes in SP manifests to align with a new messaging method
representation in partition manifests.

Signed-off-by: Max Shvetsov <maksims.svecovs@arm.com>
Change-Id: I9f6f24d6b800283a07e84a2a27708c0313b68fdc
diff --git a/tftf/tests/common/test_helpers.c b/tftf/tests/common/test_helpers.c
index d794beb..fffad67 100644
--- a/tftf/tests/common/test_helpers.c
+++ b/tftf/tests/common/test_helpers.c
@@ -172,7 +172,7 @@
 	GET_TFTF_MAILBOX(mb);
 
 	for (unsigned int i = 0U; i < ffa_uuids_size; i++)
-		SKIP_TEST_IF_FFA_ENDPOINT_NOT_DEPLOYED(*mb, ffa_uuids[i].uuid);
+		SKIP_TEST_IF_FFA_ENDPOINT_NOT_DEPLOYED(*mb, ffa_uuids[i]);
 
 	return TEST_RESULT_SUCCESS;
 }