Change legacy-elf-format SP property to elf-format

Remove legacy- prefix from the legacy-elf-format SP manifest property
based on the comments of OP-TEE maintainers. It's unnecessary to point
out in the property name that the ELF format is legacy compared to the
recommended raw binary format.
Also adding the elf-format property to manifest files of opteesp
env-test deployments.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I4e9cf935505697de5f4093c14db21b303735c302
diff --git a/deployments/crypto/config/default-opteesp/default_crypto.dts.in b/deployments/crypto/config/default-opteesp/default_crypto.dts.in
index 5190ee7..75c98aa 100644
--- a/deployments/crypto/config/default-opteesp/default_crypto.dts.in
+++ b/deployments/crypto/config/default-opteesp/default_crypto.dts.in
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2021-2023, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -16,7 +16,7 @@
 	execution-state = <0>; /* AArch64 */
 	xlat-granule = <0>; /* 4KiB */
 	messaging-method = <3>; /* Direct messaging only */
-	legacy-elf-format = <1>;
+	elf-format = <1>;
 
 	device-regions {
 		compatible = "arm,ffa-manifest-device-regions";