compiler-rt: use 64-bit time_t for all FreeBSD archs except i386

At present only i386 has 32-bit time_t on FreeBSD.

Reviewed by:	dim
Differential Revision:	https://reviews.llvm.org/D66758

llvm-svn: 370756

compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h

@@ -114,7 +114,7 @@ namespace __sanitizer {
     long key;
   };
 
-#if defined(__LP64___)
+#if !defined(__i386__)
   typedef long long __sanitizer_time_t;
 #else
   typedef long __sanitizer_time_t;