feat(handoff): add 32-bit variant of ep info

Add the 32-bit version of the entry_point_info structure used to pass
the boot arguments for future executables, added to the spec under the
PR: https://github.com/FirmwareHandoff/firmware_handoff/pull/54.

Change-Id: Id98e0f98db6ffd4790193e201f24e62101450e20
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
diff --git a/include/lib/transfer_list.h b/include/lib/transfer_list.h
index c403031..c864526 100644
--- a/include/lib/transfer_list.h
+++ b/include/lib/transfer_list.h
@@ -62,6 +62,7 @@
 	TL_TAG_EXEC_EP_INFO64 = 0x102,
 	TL_TAG_SRAM_LAYOUT64 = 0x104,
 	TL_TAG_MBEDTLS_HEAP_INFO = 0x105,
+	TL_TAG_EXEC_EP_INFO32 = 0x106,
 };
 
 enum transfer_list_ops {