Increase the Retouch buffer size from 550,000 to 600,000

The WebKit merge to r66079 built with JSC JavaScript engine triggers the
overflow.

Change-Id: Ifcb92aa019cfb0e7a93d667e15a792554fc0f676
diff --git a/tools/apriori/apriori.c b/tools/apriori/apriori.c
index 0e5b5d2..b827375 100644
--- a/tools/apriori/apriori.c
+++ b/tools/apriori/apriori.c
@@ -62,7 +62,7 @@
 
 // We will store retouch entries into this buffer, then dump them at the
 // end of the .so file before setup_prelink_info().
-#define RETOUCH_MAX_SIZE 550000
+#define RETOUCH_MAX_SIZE 600000
 static char *retouch_buf;
 static unsigned int retouch_byte_cnt;
 // Compression state.