Publish mallopt api

Provides memory cache management interfaces for third-party applications.

Issue: I79COU
Test：Build & Boot devices
Signed-off-by: Ngoblinrs <renshang@huawei.com>

libc-test/src/functional/test-mallopt.c

@@ -18,7 +18,7 @@
 
 static int test_mallopt()
 {
-	return mallopt(0, 0) != 0;
+	return mallopt(0, 0) == 0;
 }
 
 int main()

ndk_musl_include/malloc.h

@@ -9,6 +9,16 @@ extern "C" {
 
 #include <bits/alltypes.h>
 
+#define M_SET_THREAD_CACHE -1001
+#define M_THREAD_CACHE_ENABLE 1
+#define M_THREAD_CACHE_DISABLE 0
+
+#define M_FLUSH_THREAD_CACHE -1002
+
+#define M_DELAYED_FREE -1003
+#define M_DELAYED_FREE_ENABLE 1
+#define M_DELAYED_FREE_DISABLE 0
+
 void *malloc (size_t);
 void *calloc (size_t, size_t);
 void *realloc (void *, size_t);
@@ -17,6 +27,7 @@ void *valloc (size_t);
 void *memalign(size_t, size_t);
 
 size_t malloc_usable_size(void *);
+int mallopt(int param, int value);
 
 struct mallinfo {
   int arena;

ndk_script/adapter/libc.ndk.json

@@ -736,6 +736,7 @@
     { "name": "lutimes" },
     { "name": "madvise" },
     { "name": "malloc" },
+    { "name": "mallopt" },
     { "name": "malloc_usable_size" },
     { "name": "mblen" },
     { "name": "mbrlen" },