Update to track libbacktrace API changes.

Bug: 65682279

Test: Compiles. Ran art host unit tests.
Change-Id: I2077e61cc89cdb93a04a70612b01596fcc273d8c
diff --git a/runtime/dexopt_test.cc b/runtime/dexopt_test.cc
index d93d767..037d1fb 100644
--- a/runtime/dexopt_test.cc
+++ b/runtime/dexopt_test.cc
@@ -213,8 +213,8 @@
   // Ensure a chunk of memory is reserved for the image space.
   // The reservation_end includes room for the main space that has to come
   // right after the image in case of the GSS collector.
-  uintptr_t reservation_start = ART_BASE_ADDRESS;
-  uintptr_t reservation_end = ART_BASE_ADDRESS + 384 * MB;
+  uint64_t reservation_start = ART_BASE_ADDRESS;
+  uint64_t reservation_end = ART_BASE_ADDRESS + 384 * MB;
 
   std::unique_ptr<BacktraceMap> map(BacktraceMap::Create(getpid(), true));
   ASSERT_TRUE(map.get() != nullptr) << "Failed to build process map";