Rename LIBC64_HIDDEN to LIBC32_LEGACY_PUBLIC.

Change-Id: If4da9e46398ca5524f6f0680d70588e3dc7e80b4
diff --git a/libc/upstream-openbsd/android/include/openbsd-compat.h b/libc/upstream-openbsd/android/include/openbsd-compat.h
index 47bacc3..b07f55d 100644
--- a/libc/upstream-openbsd/android/include/openbsd-compat.h
+++ b/libc/upstream-openbsd/android/include/openbsd-compat.h
@@ -71,8 +71,8 @@
 __LIBC_HIDDEN__ void* reallocarray(void*, size_t, size_t);
 
 /* LP32 NDK ctype.h contained references to these. */
-__LIBC64_HIDDEN__ extern const short* _tolower_tab_;
-__LIBC64_HIDDEN__ extern const short* _toupper_tab_;
+__LIBC32_LEGACY_PUBLIC__ extern const short* _tolower_tab_;
+__LIBC32_LEGACY_PUBLIC__ extern const short* _toupper_tab_;
 
 __LIBC_HIDDEN__ extern const char _C_ctype_[];
 __LIBC_HIDDEN__ extern const short _C_toupper_[];