Move API levels from `uint32_t` to `int`.

(cherrypick of a6c71a09670ca636cca5cfea9d74b03a951e2b5e.)

Bug: N/A
Test: builds
Change-Id: I9c414e30e3c4fe2a4e16a2fe4ce18eae85fe4844
diff --git a/libdl/libdl.cpp b/libdl/libdl.cpp
index 402804e..a468f81 100644
--- a/libdl/libdl.cpp
+++ b/libdl/libdl.cpp
@@ -67,10 +67,10 @@
                                   const void* caller_addr);
 
 __attribute__((__weak__, visibility("default")))
-void __loader_android_set_application_target_sdk_version(uint32_t target);
+void __loader_android_set_application_target_sdk_version(int target);
 
 __attribute__((__weak__, visibility("default")))
-uint32_t __loader_android_get_application_target_sdk_version();
+int __loader_android_get_application_target_sdk_version();
 
 __attribute__((__weak__, visibility("default")))
 bool __loader_android_init_anonymous_namespace(const char* shared_libs_sonames,
@@ -165,12 +165,12 @@
 }
 
 __attribute__((__weak__))
-void android_set_application_target_sdk_version(uint32_t target) {
+void android_set_application_target_sdk_version(int target) {
   __loader_android_set_application_target_sdk_version(target);
 }
 
 __attribute__((__weak__))
-uint32_t android_get_application_target_sdk_version() {
+int android_get_application_target_sdk_version() {
   return __loader_android_get_application_target_sdk_version();
 }