fuzzy_fastboot: Use uint64_t for partition sizes.

Bug: N/A
Test: fuzzy_fastboot Conformance.PartitionInfo passes
Change-Id: I27182585a1522d22dd3ddfe83ce22e06dd7fc762
diff --git a/fastboot/fastboot_driver.h b/fastboot/fastboot_driver.h
index 2651690..ca9003a 100644
--- a/fastboot/fastboot_driver.h
+++ b/fastboot/fastboot_driver.h
@@ -99,7 +99,7 @@
     RetCode FlashPartition(const std::string& part, int fd, uint32_t sz);
     RetCode FlashPartition(const std::string& part, sparse_file* s);
 
-    RetCode Partitions(std::vector<std::tuple<std::string, uint32_t>>* parts);
+    RetCode Partitions(std::vector<std::tuple<std::string, uint64_t>>* parts);
     RetCode Require(const std::string& var, const std::vector<std::string>& allowed, bool* reqmet,
                     bool invert = false);