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

(cherrypick of a6c71a09670ca636cca5cfea9d74b03a951e2b5e.)

Bug: N/A
Test: builds
Change-Id: I9c414e30e3c4fe2a4e16a2fe4ce18eae85fe4844
diff --git a/libc/bionic/libc_init_static.cpp b/libc/bionic/libc_init_static.cpp
index 38a04f8..a54840b 100644
--- a/libc/bionic/libc_init_static.cpp
+++ b/libc/bionic/libc_init_static.cpp
@@ -146,16 +146,16 @@
   __real_libc_init(raw_args, onexit, slingshot, structors);
 }
 
-static uint32_t g_target_sdk_version{__ANDROID_API__};
+static int g_target_sdk_version{__ANDROID_API__};
 
-extern "C" uint32_t android_get_application_target_sdk_version() {
+extern "C" int android_get_application_target_sdk_version() {
   return g_target_sdk_version;
 }
 
-uint32_t bionic_get_application_target_sdk_version() {
+int bionic_get_application_target_sdk_version() {
   return android_get_application_target_sdk_version();
 }
 
-extern "C" void android_set_application_target_sdk_version(uint32_t target) {
+extern "C" void android_set_application_target_sdk_version(int target) {
   g_target_sdk_version = target;
 }