liblog: use int32_t and uint32_t for new NDK APIs

As requested during the API review.

Bug: 150898477
Test: liblog and libbase unit tests
Change-Id: I0c1dd57f7499e432bb881e1da1beb55f1ff7de05
diff --git a/base/liblog_symbols.h b/base/liblog_symbols.h
index d3134e9..b4ab06a 100644
--- a/base/liblog_symbols.h
+++ b/base/liblog_symbols.h
@@ -36,8 +36,8 @@
   void (*__android_log_set_aborter)(__android_aborter_function aborter);
   void (*__android_log_call_aborter)(const char* abort_message);
   void (*__android_log_default_aborter)(const char* abort_message);
-  int (*__android_log_set_minimum_priority)(int priority);
-  int (*__android_log_get_minimum_priority)();
+  int32_t (*__android_log_set_minimum_priority)(int32_t priority);
+  int32_t (*__android_log_get_minimum_priority)();
   void (*__android_log_set_default_tag)(const char* tag);
 };