libbinder fuzzer: print data from inplace reads

To make sure there are no OOB reads for these two cases.

Bug: 131861045
Test: binder_parcel_fuzzer
Change-Id: Id58fc8e8e72c6fc1c88734794382c1138ffd36f6
diff --git a/libs/binder/fuzzer/util.h b/libs/binder/fuzzer/util.h
index 07e68a8..416c3a7 100644
--- a/libs/binder/fuzzer/util.h
+++ b/libs/binder/fuzzer/util.h
@@ -45,4 +45,5 @@
     std::stringstream mOs;
 };
 
-std::string hexString(const std::vector<uint8_t>& hash);
+std::string hexString(const void* bytes, size_t len);
+std::string hexString(const std::vector<uint8_t>& bytes);