boot/espressif: Add CMakeLists.txt and mcuboot_config.h
Add sources and headers required for build
Signed-off-by: Shubham Kulkarni <shubham.kulkarni@espressif.com>
diff --git a/boot/espressif/include/os/os_malloc.h b/boot/espressif/include/os/os_malloc.h
new file mode 100644
index 0000000..1a6a6dc
--- /dev/null
+++ b/boot/espressif/include/os/os_malloc.h
@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include <stdlib.h>