feat(qemu): add support for measured boot

Add helper functions to generate event log for qemu
when MEASURED_BOOT=1.

Signed-off-by: Ruchika Gupta <ruchika.gupta@linaro.org>
Change-Id: I17a098cb614a3a89fe0fe9577bed6edda8bfd070
diff --git a/plat/qemu/common/qemu_trusted_boot.c b/plat/qemu/common/qemu_trusted_boot.c
index 1ef7e43..6a8edca 100644
--- a/plat/qemu/common/qemu_trusted_boot.c
+++ b/plat/qemu/common/qemu_trusted_boot.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -29,8 +29,3 @@
 {
 	return 1;
 }
-
-int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size)
-{
-	return get_mbedtls_heap_helper(heap_addr, heap_size);
-}