ICU Android TZ patch

--- putil.c 2011-10-18 17:12:42.000000000 -0600
+++ putilnew.c  2012-02-21 15:24:34.044908705 -0700
@@ -623,7 +623,7 @@
 U_CAPI int32_t U_EXPORT2
 uprv_timezone()
 {
-#ifdef U_TIMEZONE
+#if defined(U_TIMEZONE) && !defined(__ANDROID__)
     return U_TIMEZONE;
 #else
     time_t t, t1, t2;